# Quizbank/Electricity and Magnetism (calculus based)/QB153089888025

QB153089888025

### QB:Ch 5:V0[edit]

QB153089888025

- a) 1.028E-14 N
- b) 1.130E-14 N
- c) 1.244E-14 N
- d) 1.368E-14 N
- e) 1.505E-14 N

2) A large thin isolated square plate has an area of 6 m^{2}. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?

- a) 5.647E+01 N/C
- b) 6.212E+01 N/C
- c) 6.833E+01 N/C
- d) 7.516E+01 N/C
- e) 8.268E+01 N/C

3)

is an integral that calculates the magnitude of the electric field at a distance fromthe center of a thin circular disk as measured along a line normal to the plane of the disk. The disk's radius is and the surface charge density is . Evaluate at .

- a) 2.898E+01 V/m
^{2} - b) 3.188E+01 V/m
^{2} - c) 3.507E+01 V/m
^{2} - d) 3.857E+01 V/m
^{2} - e) 4.243E+01 V/m
^{2}

#### KEY:QB:Ch 5:V0[edit]

QB153089888025

- -a) 1.028E-14 N
- -b) 1.130E-14 N
- -c) 1.244E-14 N
- -d) 1.368E-14 N
- +e) 1.505E-14 N

2) A large thin isolated square plate has an area of 6 m^{2}. It is uniformly charged with 6 nC of charge. What is the magnitude of the electric field 2 mm from the center of the plate's surface?

- +a) 5.647E+01 N/C
- -b) 6.212E+01 N/C
- -c) 6.833E+01 N/C
- -d) 7.516E+01 N/C
- -e) 8.268E+01 N/C

3)

is an integral that calculates the magnitude of the electric field at a distance fromthe center of a thin circular disk as measured along a line normal to the plane of the disk. The disk's radius is and the surface charge density is . Evaluate at .

- +a) 2.898E+01 V/m
^{2} - -b) 3.188E+01 V/m
^{2} - -c) 3.507E+01 V/m
^{2} - -d) 3.857E+01 V/m
^{2} - -e) 4.243E+01 V/m
^{2}

### QB:Ch 5:V1[edit]

QB153089888025

- a) 8.259E-15 N
- b) 9.085E-15 N
- c) 9.993E-15 N
- d) 1.099E-14 N
- e) 1.209E-14 N

2) A large thin isolated square plate has an area of 8 m^{2}. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?

- a) 2.652E+01 N/C
- b) 2.917E+01 N/C
- c) 3.209E+01 N/C
- d) 3.529E+01 N/C
- e) 3.882E+01 N/C

3)

is an integral that calculates the magnitude of the electric field at a distance fromthe center of a thin circular disk as measured along a line normal to the plane of the disk. The disk's radius is and the surface charge density is . Evaluate at .

- a) 5.647E+00 V/m
^{2} - b) 6.212E+00 V/m
^{2} - c) 6.833E+00 V/m
^{2} - d) 7.517E+00 V/m
^{2} - e) 8.268E+00 V/m
^{2}

#### KEY:QB:Ch 5:V1[edit]

QB153089888025

- -a) 8.259E-15 N
- -b) 9.085E-15 N
- -c) 9.993E-15 N
- -d) 1.099E-14 N
- +e) 1.209E-14 N

2) A large thin isolated square plate has an area of 8 m^{2}. It is uniformly charged with 5 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?

- -a) 2.652E+01 N/C
- -b) 2.917E+01 N/C
- -c) 3.209E+01 N/C
- +d) 3.529E+01 N/C
- -e) 3.882E+01 N/C

is an integral that calculates the magnitude of the electric field at a distance fromthe center of a thin circular disk as measured along a line normal to the plane of the disk. The disk's radius is and the surface charge density is . Evaluate at .

- +a) 5.647E+00 V/m
^{2} - -b) 6.212E+00 V/m
^{2} - -c) 6.833E+00 V/m
^{2} - -d) 7.517E+00 V/m
^{2} - -e) 8.268E+00 V/m
^{2}

### QB:Ch 5:V2[edit]

QB153089888025

1)

is an integral that calculates the magnitude of the electric field at a distance fromthe center of a thin circular disk as measured along a line normal to the plane of the disk. The disk's radius is and the surface charge density is . Evaluate at .

- a) 2.567E+01 V/m
^{2} - b) 2.824E+01 V/m
^{2} - c) 3.106E+01 V/m
^{2} - d) 3.417E+01 V/m
^{2} - e) 3.759E+01 V/m
^{2}

2) A large thin isolated square plate has an area of 5 m^{2}. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?

- a) 6.534E+01 N/C
- b) 7.187E+01 N/C
- c) 7.906E+01 N/C
- d) 8.696E+01 N/C
- e) 9.566E+01 N/C

- a) 9.958E-15 N
- b) 1.095E-14 N
- c) 1.205E-14 N
- d) 1.325E-14 N
- e) 1.458E-14 N

#### KEY:QB:Ch 5:V2[edit]

QB153089888025

1)

is an integral that calculates the magnitude of the electric field at a distance fromthe center of a thin circular disk as measured along a line normal to the plane of the disk. The disk's radius is and the surface charge density is . Evaluate at .

- -a) 2.567E+01 V/m
^{2} - -b) 2.824E+01 V/m
^{2} - -c) 3.106E+01 V/m
^{2} - -d) 3.417E+01 V/m
^{2} - +e) 3.759E+01 V/m
^{2}

2) A large thin isolated square plate has an area of 5 m^{2}. It is uniformly charged with 7 nC of charge. What is the magnitude of the electric field 1 mm from the center of the plate's surface?

- -a) 6.534E+01 N/C
- -b) 7.187E+01 N/C
- +c) 7.906E+01 N/C
- -d) 8.696E+01 N/C
- -e) 9.566E+01 N/C

- -a) 9.958E-15 N
- -b) 1.095E-14 N
- -c) 1.205E-14 N
- -d) 1.325E-14 N
- +e) 1.458E-14 N

### QB:Ch 6:V0[edit]

QB153089888025

1) A non-conducting sphere of radius R=2.9 m has a non-uniform charge density that varies with the distnce from its center as given by ρ(r)=ar^{1.5} (r≤R) where a=3 nC·m^{-1.5}. What is the magnitude of the electric field at a distance of 1.7 m from the center?

- a) 2.579E+02 N/C
- b) 2.837E+02 N/C
- c) 3.121E+02 N/C
- d) 3.433E+02 N/C
- e) 3.776E+02 N/C

_{1}=1.6 m. The other four surfaces are rectangles in y=y

_{0}=1.3 m, y=y

_{1}=4.4 m, z=z

_{0}=1.4 m, and z=z

_{1}=5.5 m. The surfaces in the yz plane each have area 13.0m

^{2}. Those in the xy plane have area 5.0m

^{2},and those in the zx plane have area 6.6m

^{2}. An electric field of magnitude 11 N/C has components in the y and z directions and is directed at 34° from the z-axis. What is the magnitude (absolute value) of the electric flux through a surface aligned parallel to the xz plane?

- a) 2.756E+01 N·m
^{2}/C - b) 3.032E+01 N·m
^{2}/C - c) 3.335E+01 N·m
^{2}/C - d) 3.668E+01 N·m
^{2}/C - e) 4.035E+01 N·m
^{2}/C

3) Five concentric spherical shells have radius of exactly (1m, 2m, 3m, 4m, 5m).Each is uniformly charged with 6.5 nano-Coulombs. What is the magnitude of the electric field at a distance of 1.3 m from the center of the shells?

- a) 2.601E+01 N/C
- b) 2.861E+01 N/C
- c) 3.147E+01 N/C
- d) 3.462E+01 N/C
- e) 3.808E+01 N/C

#### KEY:QB:Ch 6:V0[edit]

QB153089888025

1) A non-conducting sphere of radius R=2.9 m has a non-uniform charge density that varies with the distnce from its center as given by ρ(r)=ar^{1.5} (r≤R) where a=3 nC·m^{-1.5}. What is the magnitude of the electric field at a distance of 1.7 m from the center?

- -a) 2.579E+02 N/C
- +b) 2.837E+02 N/C
- -c) 3.121E+02 N/C
- -d) 3.433E+02 N/C
- -e) 3.776E+02 N/C

_{1}=1.6 m. The other four surfaces are rectangles in y=y

_{0}=1.3 m, y=y

_{1}=4.4 m, z=z

_{0}=1.4 m, and z=z

_{1}=5.5 m. The surfaces in the yz plane each have area 13.0m

^{2}. Those in the xy plane have area 5.0m

^{2},and those in the zx plane have area 6.6m

^{2}. An electric field of magnitude 11 N/C has components in the y and z directions and is directed at 34° from the z-axis. What is the magnitude (absolute value) of the electric flux through a surface aligned parallel to the xz plane?

- -a) 2.756E+01 N·m
^{2}/C - -b) 3.032E+01 N·m
^{2}/C - -c) 3.335E+01 N·m
^{2}/C - -d) 3.668E+01 N·m
^{2}/C - +e) 4.035E+01 N·m
^{2}/C

3) Five concentric spherical shells have radius of exactly (1m, 2m, 3m, 4m, 5m).Each is uniformly charged with 6.5 nano-Coulombs. What is the magnitude of the electric field at a distance of 1.3 m from the center of the shells?

- -a) 2.601E+01 N/C
- -b) 2.861E+01 N/C
- -c) 3.147E+01 N/C
- +d) 3.462E+01 N/C
- -e) 3.808E+01 N/C

### QB:Ch 6:V1[edit]

QB153089888025

_{1}=1.6 m. The other four surfaces are rectangles in y=y

_{0}=1.3 m, y=y

_{1}=4.4 m, z=z

_{0}=1.4 m, and z=z

_{1}=5.5 m. The surfaces in the yz plane each have area 13.0m

^{2}. Those in the xy plane have area 5.0m

^{2},and those in the zx plane have area 6.6m

^{2}. An electric field of magnitude 11 N/C has components in the y and z directions and is directed at 34° from the z-axis. What is the magnitude (absolute value) of the electric flux through a surface aligned parallel to the xz plane?

- a) 2.756E+01 :b) 3.032E+01 :c) 3.335E+01 :d) 3.668E+01 :e) 4.035E+01

2) A non-conducting sphere of radius R=3.8 m has a non-uniform charge density that varies with the distnce from its center as given by ρ(r)=ar^{1.7} (r≤R) where a=3 nC·m^{-1.3}. What is the magnitude of the electric field at a distance of 3.1 m from the center?

- a) 1.390E+03 N/C
- b) 1.530E+03 N/C
- c) 1.682E+03 N/C
- d) 1.851E+03 N/C
- e) 2.036E+03 N/C

3) Five concentric spherical shells have radius of exactly (1m, 2m, 3m, 4m, 5m).Each is uniformly charged with 6.5 nano-Coulombs. What is the magnitude of the electric field at a distance of 1.3 m from the center of the shells?

- a) 2.601E+01 N/C
- b) 2.861E+01 N/C
- c) 3.147E+01 N/C
- d) 3.462E+01 N/C
- e) 3.808E+01 N/C

#### KEY:QB:Ch 6:V1[edit]

QB153089888025

_{1}=1.6 m. The other four surfaces are rectangles in y=y

_{0}=1.3 m, y=y

_{1}=4.4 m, z=z

_{0}=1.4 m, and z=z

_{1}=5.5 m. The surfaces in the yz plane each have area 13.0m

^{2}. Those in the xy plane have area 5.0m

^{2},and those in the zx plane have area 6.6m

^{2}. An electric field of magnitude 11 N/C has components in the y and z directions and is directed at 34° from the z-axis. What is the magnitude (absolute value) of the electric flux through a surface aligned parallel to the xz plane?

- -a) 2.756E+01 N·m
^{2}/C - -b) 3.032E+01 N·m
^{2}/C - -c) 3.335E+01 N·m
^{2}/C - -d) 3.668E+01 N·m
^{2}/C - +e) 4.035E+01 N·m
^{2}/C

2) A non-conducting sphere of radius R=3.8 m has a non-uniform charge density that varies with the distnce from its center as given by ρ(r)=ar^{1.7} (r≤R) where a=3 nC·m^{-1.3}. What is the magnitude of the electric field at a distance of 3.1 m from the center?

- -a) 1.390E+03 N/C
- +b) 1.530E+03 N/C
- -c) 1.682E+03 N/C
- -d) 1.851E+03 N/C
- -e) 2.036E+03 N/C

- -a) 2.601E+01 N/C
- -b) 2.861E+01 N/C
- -c) 3.147E+01 N/C
- +d) 3.462E+01 N/C
- -e) 3.808E+01 N/C

### QB:Ch 6:V2[edit]

QB153089888025

1) Five concentric spherical shells have radius of exactly (1m, 2m, 3m, 4m, 5m).Each is uniformly charged with 7.4 nano-Coulombs. What is the magnitude of the electric field at a distance of 5.4 m from the center of the shells?

- a) 8.580E+00 N/C
- b) 9.438E+00 N/C
- c) 1.038E+01 N/C
- d) 1.142E+01 N/C
- e) 1.256E+01 N/C

_{1}=2.5 m. The other four surfaces are rectangles in y=y

_{0}=1.4 m, y=y

_{1}=4.8 m, z=z

_{0}=1.7 m, and z=z

_{1}=4.6 m. The surfaces in the yz plane each have area 9.9m

^{2}. Those in the xy plane have area 8.5m

^{2},and those in the zx plane have area 7.2m

^{2}. An electric field of magnitude 14 N/C has components in the y and z directions and is directed at 55° from the z-axis. What is the magnitude (absolute value) of the electric flux through a surface aligned parallel to the xz plane?

- a) 8.314E+01 N·m
^{2}/C - b) 9.146E+01 N·m
^{2}/C - c) 1.006E+02 N·m
^{2}/C - d) 1.107E+02 N·m
^{2}/C - e) 1.217E+02 N·m
^{2}/C

3) A non-conducting sphere of radius R=3.0 m has a non-uniform charge density that varies with the distnce from its center as given by ρ(r)=ar^{1.2} (r≤R) where a=2 nC·m^{-1.8}. What is the magnitude of the electric field at a distance of 2.1 m from the center?

- a) 2.274E+02 N/C
- b) 2.501E+02 N/C
- c) 2.751E+02 N/C
- d) 3.026E+02 N/C
- e) 3.329E+02 N/C

#### KEY:QB:Ch 6:V2[edit]

QB153089888025

1) Five concentric spherical shells have radius of exactly (1m, 2m, 3m, 4m, 5m).Each is uniformly charged with 7.4 nano-Coulombs. What is the magnitude of the electric field at a distance of 5.4 m from the center of the shells?

- -a) 8.580E+00 N/C
- -b) 9.438E+00 N/C
- -c) 1.038E+01 N/C
- +d) 1.142E+01 N/C
- -e) 1.256E+01 N/C

_{1}=2.5 m. The other four surfaces are rectangles in y=y

_{0}=1.4 m, y=y

_{1}=4.8 m, z=z

_{0}=1.7 m, and z=z

_{1}=4.6 m. The surfaces in the yz plane each have area 9.9m

^{2}. Those in the xy plane have area 8.5m

^{2},and those in the zx plane have area 7.2m

^{2}. An electric field of magnitude 14 N/C has components in the y and z directions and is directed at 55° from the z-axis. What is the magnitude (absolute value) of the electric flux through a surface aligned parallel to the xz plane?

- +a) 8.314E+01 N·m
^{2}/C - -b) 9.146E+01 N·m
^{2}/C - -c) 1.006E+02 N·m
^{2}/C - -d) 1.107E+02 N·m
^{2}/C - -e) 1.217E+02 N·m
^{2}/C

3) A non-conducting sphere of radius R=3.0 m has a non-uniform charge density that varies with the distnce from its center as given by ρ(r)=ar^{1.2} (r≤R) where a=2 nC·m^{-1.8}. What is the magnitude of the electric field at a distance of 2.1 m from the center?

- -a) 2.274E+02 N/C
- -b) 2.501E+02 N/C
- +c) 2.751E+02 N/C
- -d) 3.026E+02 N/C
- -e) 3.329E+02 N/C

### QB:Ch 7:V0[edit]

QB153089888025

1) If a 11 nC charge is situated at the origin, the equipotential surface for V(x,y,z)=43 V is x^{2} + y^{2} + z^{2} = R^{2}, where R=

- a) 2.299E+00 m
- b) 2.529E+00 m
- c) 2.782E+00 m
- d) 3.060E+00 m
- e) 3.366E+00 m

2) A 12.0 V battery can move 44,000 C of charge. How many Joules does it deliver?

- a) 4.800E+05 J
- b) 5.280E+05 J
- c) 5.808E+05 J
- d) 6.389E+05 J
- e) 7.028E+05 J

3) When a 3.21 V battery operates a 2.38 W bulb, how many electrons pass through it each second?

- a) 3.161E+18 electrons
- b) 3.477E+18 electrons
- c) 3.825E+18 electrons
- d) 4.207E+18 electrons
- e) 4.628E+18 electrons

#### KEY:QB:Ch 7:V0[edit]

QB153089888025

1) If a 11 nC charge is situated at the origin, the equipotential surface for V(x,y,z)=43 V is x^{2} + y^{2} + z^{2} = R^{2}, where R=

- +a) 2.299E+00 m
- -b) 2.529E+00 m
- -c) 2.782E+00 m
- -d) 3.060E+00 m
- -e) 3.366E+00 m

2) A 12.0 V battery can move 44,000 C of charge. How many Joules does it deliver?

- -a) 4.800E+05 J
- +b) 5.280E+05 J
- -c) 5.808E+05 J
- -d) 6.389E+05 J
- -e) 7.028E+05 J

3) When a 3.21 V battery operates a 2.38 W bulb, how many electrons pass through it each second?

- -a) 3.161E+18 electrons
- -b) 3.477E+18 electrons
- -c) 3.825E+18 electrons
- -d) 4.207E+18 electrons
- +e) 4.628E+18 electrons

### QB:Ch 7:V1[edit]

QB153089888025

1) When a 5.65 V battery operates a 2.73 W bulb, how many electrons pass through it each second?

- a) 3.016E+18 electrons
- b) 3.317E+18 electrons
- c) 3.649E+18 electrons
- d) 4.014E+18 electrons
- e) 4.415E+18 electrons

2) If a 20 nC charge is situated at the origin, the equipotential surface for V(x,y,z)=70 V is x^{2} + y^{2} + z^{2} = R^{2}, where R=

- a) 1.754E+00 m
- b) 1.929E+00 m
- c) 2.122E+00 m
- d) 2.334E+00 m
- e) 2.568E+00 m

3) A 12.0 V battery can move 38,000 C of charge. How many Joules does it deliver?

- a) 3.115E+05 J
- b) 3.426E+05 J
- c) 3.769E+05 J
- d) 4.145E+05 J
- e) 4.560E+05 J

#### KEY:QB:Ch 7:V1[edit]

QB153089888025

1) When a 5.65 V battery operates a 2.73 W bulb, how many electrons pass through it each second?

- +a) 3.016E+18 electrons
- -b) 3.317E+18 electrons
- -c) 3.649E+18 electrons
- -d) 4.014E+18 electrons
- -e) 4.415E+18 electrons

2) If a 20 nC charge is situated at the origin, the equipotential surface for V(x,y,z)=70 V is x^{2} + y^{2} + z^{2} = R^{2}, where R=

- -a) 1.754E+00 m
- -b) 1.929E+00 m
- -c) 2.122E+00 m
- -d) 2.334E+00 m
- +e) 2.568E+00 m

3) A 12.0 V battery can move 38,000 C of charge. How many Joules does it deliver?

- -a) 3.115E+05 J
- -b) 3.426E+05 J
- -c) 3.769E+05 J
- -d) 4.145E+05 J
- +e) 4.560E+05 J

### QB:Ch 7:V2[edit]

QB153089888025

1) When a 6.24 V battery operates a 2.1 W bulb, how many electrons pass through it each second?

- a) 1.435E+18 electrons
- b) 1.578E+18 electrons
- c) 1.736E+18 electrons
- d) 1.910E+18 electrons
- e) 2.101E+18 electrons

2) A 12.0 V battery can move 36,000 C of charge. How many Joules does it deliver?

- a) 3.570E+05 J
- b) 3.927E+05 J
- c) 4.320E+05 J
- d) 4.752E+05 J
- e) 5.227E+05 J

3) If a 14 nC charge is situated at the origin, the equipotential surface for V(x,y,z)=83 V is x^{2} + y^{2} + z^{2} = R^{2}, where R=

- a) 1.378E+00 m
- b) 1.516E+00 m
- c) 1.668E+00 m
- d) 1.834E+00 m
- e) 2.018E+00 m

#### KEY:QB:Ch 7:V2[edit]

QB153089888025

1) When a 6.24 V battery operates a 2.1 W bulb, how many electrons pass through it each second?

- -a) 1.435E+18 electrons
- -b) 1.578E+18 electrons
- -c) 1.736E+18 electrons
- -d) 1.910E+18 electrons
- +e) 2.101E+18 electrons

2) A 12.0 V battery can move 36,000 C of charge. How many Joules does it deliver?

- -a) 3.570E+05 J
- -b) 3.927E+05 J
- +c) 4.320E+05 J
- -d) 4.752E+05 J
- -e) 5.227E+05 J

3) If a 14 nC charge is situated at the origin, the equipotential surface for V(x,y,z)=83 V is x^{2} + y^{2} + z^{2} = R^{2}, where R=

- -a) 1.378E+00 m
- +b) 1.516E+00 m
- -c) 1.668E+00 m
- -d) 1.834E+00 m
- -e) 2.018E+00 m

### QB:Ch 8:V0[edit]

QB153089888025

_{1}=18.7 μF, C

_{2}=2.15 μF, and C

_{3}=4.88 μF. The voltage source provides ε=11.9 V. What is the energy stored in C

_{2}?

- a) 1.270E+01 μJ
- b) 1.397E+01 μJ
- c) 1.537E+01 μJ
- d) 1.690E+01 μJ
- e) 1.859E+01 μJ

2) An empty parallel-plate capacitor with metal plates has an area of 1.94 m^{2}, separated by 1.27 mm. How much charge does it store if the voltage is 8.780E+03 V?

- a) 1.080E+02 μC
- b) 1.188E+02 μC
- c) 1.306E+02 μC
- d) 1.437E+02 μC
- e) 1.581E+02 μC

_{1}=16.9 μF, C

_{2}=2.3 μF, and C

_{3}=4.67 μF. The voltage source provides ε=13.4 V. What is the charge on C

_{1}?

- a) 6.011E+01 μC
- b) 6.613E+01 μC
- c) 7.274E+01 μC
- d) 8.001E+01 μC
- e) 8.801E+01 μC

#### KEY:QB:Ch 8:V0[edit]

QB153089888025

_{1}=18.7 μF, C

_{2}=2.15 μF, and C

_{3}=4.88 μF. The voltage source provides ε=11.9 V. What is the energy stored in C

_{2}?

- -a) 1.270E+01 μJ
- -b) 1.397E+01 μJ
- -c) 1.537E+01 μJ
- -d) 1.690E+01 μJ
- +e) 1.859E+01 μJ

2) An empty parallel-plate capacitor with metal plates has an area of 1.94 m^{2}, separated by 1.27 mm. How much charge does it store if the voltage is 8.780E+03 V?

- -a) 1.080E+02 μC
- +b) 1.188E+02 μC
- -c) 1.306E+02 μC
- -d) 1.437E+02 μC
- -e) 1.581E+02 μC

_{1}=16.9 μF, C

_{2}=2.3 μF, and C

_{3}=4.67 μF. The voltage source provides ε=13.4 V. What is the charge on C

_{1}?

- -a) 6.011E+01 μC
- +b) 6.613E+01 μC
- -c) 7.274E+01 μC
- -d) 8.001E+01 μC
- -e) 8.801E+01 μC

### QB:Ch 8:V1[edit]

QB153089888025

1) An empty parallel-plate capacitor with metal plates has an area of 2.42 m^{2}, separated by 1.33 mm. How much charge does it store if the voltage is 1.130E+03 V?

- a) 1.368E+01 μC
- b) 1.505E+01 μC
- c) 1.655E+01 μC
- d) 1.820E+01 μC
- e) 2.003E+01 μC

_{1}=19.2 μF, C

_{2}=2.24 μF, and C

_{3}=4.93 μF. The voltage source provides ε=11.7 V. What is the energy stored in C

_{2}?

- a) 1.303E+01 μJ
- b) 1.434E+01 μJ
- c) 1.577E+01 μJ
- d) 1.735E+01 μJ
- e) 1.908E+01 μJ

_{1}=16.0 μF, C

_{2}=2.27 μF, and C

_{3}=4.4 μF. The voltage source provides ε=7.11 V. What is the charge on C

_{1}?

- a) 2.515E+01 μC
- b) 2.766E+01 μC
- c) 3.043E+01 μC
- d) 3.347E+01 μC
- e) 3.682E+01 μC

#### KEY:QB:Ch 8:V1[edit]

QB153089888025

1) An empty parallel-plate capacitor with metal plates has an area of 2.42 m^{2}, separated by 1.33 mm. How much charge does it store if the voltage is 1.130E+03 V?

- -a) 1.368E+01 μC
- -b) 1.505E+01 μC
- -c) 1.655E+01 μC
- +d) 1.820E+01 μC
- -e) 2.003E+01 μC

_{1}=19.2 μF, C

_{2}=2.24 μF, and C

_{3}=4.93 μF. The voltage source provides ε=11.7 V. What is the energy stored in C

_{2}?

- -a) 1.303E+01 μJ
- -b) 1.434E+01 μJ
- -c) 1.577E+01 μJ
- -d) 1.735E+01 μJ
- +e) 1.908E+01 μJ

_{1}=16.0 μF, C

_{2}=2.27 μF, and C

_{3}=4.4 μF. The voltage source provides ε=7.11 V. What is the charge on C

_{1}?

- -a) 2.515E+01 μC
- -b) 2.766E+01 μC
- -c) 3.043E+01 μC
- +d) 3.347E+01 μC
- -e) 3.682E+01 μC

### QB:Ch 8:V2[edit]

QB153089888025

_{1}=15.0 μF, C

_{2}=2.65 μF, and C

_{3}=5.67 μF. The voltage source provides ε=7.44 V. What is the charge on C

_{1}?

- a) 3.982E+01 μC
- b) 4.380E+01 μC
- c) 4.818E+01 μC
- d) 5.300E+01 μC
- e) 5.829E+01 μC

2) An empty parallel-plate capacitor with metal plates has an area of 1.73 m^{2}, separated by 1.16 mm. How much charge does it store if the voltage is 1.130E+03 V?

- a) 1.121E+01 μC
- b) 1.233E+01 μC
- c) 1.357E+01 μC
- d) 1.492E+01 μC
- e) 1.641E+01 μC

_{1}=18.1 μF, C

_{2}=2.89 μF, and C

_{3}=4.2 μF. The voltage source provides ε=9.19 V. What is the energy stored in C

_{2}?

- a) 1.303E+01 μJ
- b) 1.434E+01 μJ
- c) 1.577E+01 μJ
- d) 1.735E+01 μJ
- e) 1.908E+01 μJ

#### KEY:QB:Ch 8:V2[edit]

QB153089888025

_{1}=15.0 μF, C

_{2}=2.65 μF, and C

_{3}=5.67 μF. The voltage source provides ε=7.44 V. What is the charge on C

_{1}?

- +a) 3.982E+01 μC
- -b) 4.380E+01 μC
- -c) 4.818E+01 μC
- -d) 5.300E+01 μC
- -e) 5.829E+01 μC

2) An empty parallel-plate capacitor with metal plates has an area of 1.73 m^{2}, separated by 1.16 mm. How much charge does it store if the voltage is 1.130E+03 V?

- -a) 1.121E+01 μC
- -b) 1.233E+01 μC
- -c) 1.357E+01 μC
- +d) 1.492E+01 μC
- -e) 1.641E+01 μC

_{1}=18.1 μF, C

_{2}=2.89 μF, and C

_{3}=4.2 μF. The voltage source provides ε=9.19 V. What is the energy stored in C

_{2}?

- -a) 1.303E+01 μJ
- -b) 1.434E+01 μJ
- -c) 1.577E+01 μJ
- -d) 1.735E+01 μJ
- +e) 1.908E+01 μJ

### QB:Ch 9:V0[edit]

QB153089888025

1) A make-believe metal has a density of 5.880E+03 kg/m^{3} and an atomic mass of 87.4 g/mol. Taking Avogadro's number to be 6.020E+23 atoms/mol and assuming one free electron per atom, calculate the number of free electrons per cubic meter.

- a) 3.347E+28 e
^{−}/m^{3} - b) 3.682E+28 e
^{−}/m^{3} - c) 4.050E+28 e
^{−}/m^{3} - d) 4.455E+28 e
^{−}/m^{3} - e) 4.901E+28 e
^{−}/m^{3}

2) Calculate the electric field in a 12-gauge copper wire that is 48 m long and carries a current of 63 mA. The resistivity of copper is 1.680E-08 Ω·m and 12-gauge wire as a cross-sectional area of 3.31 mm^{2}.

- a) 3.198E-04 V/m
- b) 3.517E-04 V/m
- c) 3.869E-04 V/m
- d) 4.256E-04 V/m
- e) 4.682E-04 V/m

3) The charge passing a plane intersecting a wire is , where =58 C and 0.0249 s. What is the current at 0.0191 s?

- a) 8.127E+02 A
- b) 8.939E+02 A
- c) 9.833E+02 A
- d) 1.082E+03 A
- e) 1.190E+03 A

#### KEY:QB:Ch 9:V0[edit]

QB153089888025

1) A make-believe metal has a density of 5.880E+03 kg/m^{3} and an atomic mass of 87.4 g/mol. Taking Avogadro's number to be 6.020E+23 atoms/mol and assuming one free electron per atom, calculate the number of free electrons per cubic meter.

- -a) 3.347E+28 e
^{−}/m^{3} - -b) 3.682E+28 e
^{−}/m^{3} - +c) 4.050E+28 e
^{−}/m^{3} - -d) 4.455E+28 e
^{−}/m^{3} - -e) 4.901E+28 e
^{−}/m^{3}

2) Calculate the electric field in a 12-gauge copper wire that is 48 m long and carries a current of 63 mA. The resistivity of copper is 1.680E-08 Ω·m and 12-gauge wire as a cross-sectional area of 3.31 mm^{2}.

- +a) 3.198E-04 V/m
- -b) 3.517E-04 V/m
- -c) 3.869E-04 V/m
- -d) 4.256E-04 V/m
- -e) 4.682E-04 V/m

3) The charge passing a plane intersecting a wire is , where =58 C and 0.0249 s. What is the current at 0.0191 s?

- -a) 8.127E+02 A
- -b) 8.939E+02 A
- -c) 9.833E+02 A
- +d) 1.082E+03 A
- -e) 1.190E+03 A

### QB:Ch 9:V1[edit]

QB153089888025

1) The charge passing a plane intersecting a wire is , where =16 C and 0.0214 s. What is the current at 0.0207 s?

- a) 2.135E+02 A
- b) 2.349E+02 A
- c) 2.584E+02 A
- d) 2.842E+02 A
- e) 3.126E+02 A

2) A make-believe metal has a density of 1.050E+04 kg/m^{3} and an atomic mass of 58.8 g/mol. Taking Avogadro's number to be 6.020E+23 atoms/mol and assuming one free electron per atom, calculate the number of free electrons per cubic meter.

- a) 1.075E+29 e
^{−}/m^{3} - b) 1.183E+29 e
^{−}/m^{3} - c) 1.301E+29 e
^{−}/m^{3} - d) 1.431E+29 e
^{−}/m^{3} - e) 1.574E+29 e
^{−}/m^{3}

3) Calculate the electric field in a 12-gauge copper wire that is 48 m long and carries a current of 63 mA. The resistivity of copper is 1.680E-08 Ω·m and 12-gauge wire as a cross-sectional area of 3.31 mm^{2}.

- a) 3.198E-04 V/m
- b) 3.517E-04 V/m
- c) 3.869E-04 V/m
- d) 4.256E-04 V/m
- e) 4.682E-04 V/m

#### KEY:QB:Ch 9:V1[edit]

QB153089888025

1) The charge passing a plane intersecting a wire is , where =16 C and 0.0214 s. What is the current at 0.0207 s?

- -a) 2.135E+02 A
- -b) 2.349E+02 A
- -c) 2.584E+02 A
- +d) 2.842E+02 A
- -e) 3.126E+02 A

2) A make-believe metal has a density of 1.050E+04 kg/m^{3} and an atomic mass of 58.8 g/mol. Taking Avogadro's number to be 6.020E+23 atoms/mol and assuming one free electron per atom, calculate the number of free electrons per cubic meter.

- +a) 1.075E+29 e
^{−}/m^{3} - -b) 1.183E+29 e
^{−}/m^{3} - -c) 1.301E+29 e
^{−}/m^{3} - -d) 1.431E+29 e
^{−}/m^{3} - -e) 1.574E+29 e
^{−}/m^{3}

3) Calculate the electric field in a 12-gauge copper wire that is 48 m long and carries a current of 63 mA. The resistivity of copper is 1.680E-08 Ω·m and 12-gauge wire as a cross-sectional area of 3.31 mm^{2}.

- +a) 3.198E-04 V/m
- -b) 3.517E-04 V/m
- -c) 3.869E-04 V/m
- -d) 4.256E-04 V/m
- -e) 4.682E-04 V/m

### QB:Ch 9:V2[edit]

QB153089888025

1) A make-believe metal has a density of 1.430E+04 kg/m^{3} and an atomic mass of 37.8 g/mol. Taking Avogadro's number to be 6.020E+23 atoms/mol and assuming one free electron per atom, calculate the number of free electrons per cubic meter.

- a) 1.882E+29 e
^{−}/m^{3} - b) 2.070E+29 e
^{−}/m^{3} - c) 2.277E+29 e
^{−}/m^{3} - d) 2.505E+29 e
^{−}/m^{3} - e) 2.756E+29 e
^{−}/m^{3}

2) The charge passing a plane intersecting a wire is , where =30 C and 0.0178 s. What is the current at 0.0161 s?

- a) 5.125E+02 A
- b) 5.638E+02 A
- c) 6.201E+02 A
- d) 6.822E+02 A
- e) 7.504E+02 A

3) Calculate the electric field in a 12-gauge copper wire that is 13 m long and carries a current of 59 mA. The resistivity of copper is 1.680E-08 Ω·m and 12-gauge wire as a cross-sectional area of 3.31 mm^{2}.

- a) 2.250E-04 V/m
- b) 2.475E-04 V/m
- c) 2.722E-04 V/m
- d) 2.995E-04 V/m
- e) 3.294E-04 V/m

#### KEY:QB:Ch 9:V2[edit]

QB153089888025

1) A make-believe metal has a density of 1.430E+04 kg/m^{3} and an atomic mass of 37.8 g/mol. Taking Avogadro's number to be 6.020E+23 atoms/mol and assuming one free electron per atom, calculate the number of free electrons per cubic meter.

- -a) 1.882E+29 e
^{−}/m^{3} - -b) 2.070E+29 e
^{−}/m^{3} - +c) 2.277E+29 e
^{−}/m^{3} - -d) 2.505E+29 e
^{−}/m^{3} - -e) 2.756E+29 e
^{−}/m^{3}

2) The charge passing a plane intersecting a wire is , where =30 C and 0.0178 s. What is the current at 0.0161 s?

- -a) 5.125E+02 A
- -b) 5.638E+02 A
- -c) 6.201E+02 A
- +d) 6.822E+02 A
- -e) 7.504E+02 A

3) Calculate the electric field in a 12-gauge copper wire that is 13 m long and carries a current of 59 mA. The resistivity of copper is 1.680E-08 Ω·m and 12-gauge wire as a cross-sectional area of 3.31 mm^{2}.

- -a) 2.250E-04 V/m
- -b) 2.475E-04 V/m
- -c) 2.722E-04 V/m
- +d) 2.995E-04 V/m
- -e) 3.294E-04 V/m

### QB:Ch 10:V0[edit]

QB153089888025

_{1}=24.8 V, and ε

_{2}=10.3 V are oriented as shownin the circuit. The resistances are R

_{1}=2.19 kΩ and R

_{2}=1.6 kΩ. Three other currents enter and exit or exit from portions of the circuit that lie outside the dotted rectangle and are not shown. I

_{3}=2.49 mA and I

_{4}=0.83 mA enter and leave near R

_{2}, while the current I

_{5}exits near R

_{1}.What is the magnitude (absolute value) of I

_{5}?

- a) 1.660E+00 mA
- b) 1.826E+00 mA
- c) 2.009E+00 mA
- d) 2.209E+00 mA
- e) 2.430E+00 mA

- a) 1.385E+01 s
- b) 1.524E+01 s
- c) 1.676E+01 s
- d) 1.844E+01 s
- e) 2.028E+01 s

_{1}=21.6 V, and ε

_{2}=8.59 V are oriented as shownin the circuit. The resistances are R

_{1}=4.97 kΩ and R

_{2}=1.69 kΩ. Three other currents enter and exit or exit from portions of the circuit that lie outside the dotted rectangle and are not shown. I

_{3}=3.2 mA and I

_{4}=0.749 mA enter and leave near R

_{2}, while the current I

_{5}exits near R

_{1}.What is the magnitude (absolute value) of voltage drop across R

_{2}?

- a) 6.064E+00 V
- b) 6.670E+00 V
- c) 7.337E+00 V
- d) 8.071E+00 V
- e) 8.878E+00 V

#### KEY:QB:Ch 10:V0[edit]

QB153089888025

_{1}=24.8 V, and ε

_{2}=10.3 V are oriented as shownin the circuit. The resistances are R

_{1}=2.19 kΩ and R

_{2}=1.6 kΩ. Three other currents enter and exit or exit from portions of the circuit that lie outside the dotted rectangle and are not shown. I

_{3}=2.49 mA and I

_{4}=0.83 mA enter and leave near R

_{2}, while the current I

_{5}exits near R

_{1}.What is the magnitude (absolute value) of I

_{5}?

- +a) 1.660E+00 mA
- -b) 1.826E+00 mA
- -c) 2.009E+00 mA
- -d) 2.209E+00 mA
- -e) 2.430E+00 mA

- -a) 1.385E+01 s
- +b) 1.524E+01 s
- -c) 1.676E+01 s
- -d) 1.844E+01 s
- -e) 2.028E+01 s

_{1}=21.6 V, and ε

_{2}=8.59 V are oriented as shownin the circuit. The resistances are R

_{1}=4.97 kΩ and R

_{2}=1.69 kΩ. Three other currents enter and exit or exit from portions of the circuit that lie outside the dotted rectangle and are not shown. I

_{3}=3.2 mA and I

_{4}=0.749 mA enter and leave near R

_{2}, while the current I

_{5}exits near R

_{1}.What is the magnitude (absolute value) of voltage drop across R

_{2}?

- -a) 6.064E+00 V
- -b) 6.670E+00 V
- +c) 7.337E+00 V
- -d) 8.071E+00 V
- -e) 8.878E+00 V

### QB:Ch 10:V1[edit]

QB153089888025

- a) 5.401E+00 s
- b) 5.941E+00 s
- c) 6.535E+00 s
- d) 7.189E+00 s
- e) 7.908E+00 s

_{1}=46.1 V, and ε

_{2}=16.2 V are oriented as shownin the circuit. The resistances are R

_{1}=5.17 kΩ and R

_{2}=2.06 kΩ. Three other currents enter and exit or exit from portions of the circuit that lie outside the dotted rectangle and are not shown. I

_{3}=4.97 mA and I

_{4}=1.07 mA enter and leave near R

_{2}, while the current I

_{5}exits near R

_{1}.What is the magnitude (absolute value) of voltage drop across R

_{2}?

- a) 1.309E+01 V
- b) 1.440E+01 V
- c) 1.584E+01 V
- d) 1.742E+01 V
- e) 1.917E+01 V

_{1}=43.0 V, and ε

_{2}=13.8 V are oriented as shownin the circuit. The resistances are R

_{1}=3.97 kΩ and R

_{2}=1.12 kΩ. Three other currents enter and exit or exit from portions of the circuit that lie outside the dotted rectangle and are not shown. I

_{3}=6.25 mA and I

_{4}=1.82 mA enter and leave near R

_{2}, while the current I

_{5}exits near R

_{1}.What is the magnitude (absolute value) of I

_{5}?

- a) 3.661E+00 mA
- b) 4.027E+00 mA
- c) 4.430E+00 mA
- d) 4.873E+00 mA
- e) 5.360E+00 mA

#### KEY:QB:Ch 10:V1[edit]

QB153089888025

- -a) 5.401E+00 s
- -b) 5.941E+00 s
- -c) 6.535E+00 s
- -d) 7.189E+00 s
- +e) 7.908E+00 s

_{1}=46.1 V, and ε

_{2}=16.2 V are oriented as shownin the circuit. The resistances are R

_{1}=5.17 kΩ and R

_{2}=2.06 kΩ. Three other currents enter and exit or exit from portions of the circuit that lie outside the dotted rectangle and are not shown. I

_{3}=4.97 mA and I

_{4}=1.07 mA enter and leave near R

_{2}, while the current I

_{5}exits near R

_{1}.What is the magnitude (absolute value) of voltage drop across R

_{2}?

- -a) 1.309E+01 V
- -b) 1.440E+01 V
- +c) 1.584E+01 V
- -d) 1.742E+01 V
- -e) 1.917E+01 V

_{1}=43.0 V, and ε

_{2}=13.8 V are oriented as shownin the circuit. The resistances are R

_{1}=3.97 kΩ and R

_{2}=1.12 kΩ. Three other currents enter and exit or exit from portions of the circuit that lie outside the dotted rectangle and are not shown. I

_{3}=6.25 mA and I

_{4}=1.82 mA enter and leave near R

_{2}, while the current I

_{5}exits near R

_{1}.What is the magnitude (absolute value) of I

_{5}?

- -a) 3.661E+00 mA
- -b) 4.027E+00 mA
- +c) 4.430E+00 mA
- -d) 4.873E+00 mA
- -e) 5.360E+00 mA

### QB:Ch 10:V2[edit]

QB153089888025

_{1}=45.3 V, and ε

_{2}=13.3 V are oriented as shownin the circuit. The resistances are R

_{1}=3.82 kΩ and R

_{2}=1.5 kΩ. Three other currents enter and exit or exit from portions of the circuit that lie outside the dotted rectangle and are not shown. I

_{3}=6.17 mA and I

_{4}=1.11 mA enter and leave near R

_{2}, while the current I

_{5}exits near R

_{1}.What is the magnitude (absolute value) of voltage drop across R

_{2}?

- a) 1.177E+01 V
- b) 1.295E+01 V
- c) 1.424E+01 V
- d) 1.567E+01 V
- e) 1.723E+01 V

_{1}=40.6 V, and ε

_{2}=13.5 V are oriented as shownin the circuit. The resistances are R

_{1}=4.35 kΩ and R

_{2}=2.44 kΩ. Three other currents enter and exit or exit from portions of the circuit that lie outside the dotted rectangle and are not shown. I

_{3}=2.73 mA and I

_{4}=0.78 mA enter and leave near R

_{2}, while the current I

_{5}exits near R

_{1}.What is the magnitude (absolute value) of I

_{5}?

- a) 1.332E+00 mA
- b) 1.465E+00 mA
- c) 1.612E+00 mA
- d) 1.773E+00 mA
- e) 1.950E+00 mA

- a) 1.218E+01 s
- b) 1.339E+01 s
- c) 1.473E+01 s
- d) 1.621E+01 s
- e) 1.783E+01 s

#### KEY:QB:Ch 10:V2[edit]

QB153089888025

_{1}=45.3 V, and ε

_{2}=13.3 V are oriented as shownin the circuit. The resistances are R

_{1}=3.82 kΩ and R

_{2}=1.5 kΩ. Three other currents enter and exit or exit from portions of the circuit that lie outside the dotted rectangle and are not shown. I

_{3}=6.17 mA and I

_{4}=1.11 mA enter and leave near R

_{2}, while the current I

_{5}exits near R

_{1}.What is the magnitude (absolute value) of voltage drop across R

_{2}?

- -a) 1.177E+01 V
- -b) 1.295E+01 V
- -c) 1.424E+01 V
- +d) 1.567E+01 V
- -e) 1.723E+01 V

_{1}=40.6 V, and ε

_{2}=13.5 V are oriented as shownin the circuit. The resistances are R

_{1}=4.35 kΩ and R

_{2}=2.44 kΩ. Three other currents enter and exit or exit from portions of the circuit that lie outside the dotted rectangle and are not shown. I

_{3}=2.73 mA and I

_{4}=0.78 mA enter and leave near R

_{2}, while the current I

_{5}exits near R

_{1}.What is the magnitude (absolute value) of I

_{5}?

- -a) 1.332E+00 mA
- -b) 1.465E+00 mA
- -c) 1.612E+00 mA
- -d) 1.773E+00 mA
- +e) 1.950E+00 mA

- -a) 1.218E+01 s
- -b) 1.339E+01 s
- -c) 1.473E+01 s
- +d) 1.621E+01 s
- -e) 1.783E+01 s

### QB:Ch 11:V0[edit]

QB153089888025

1) A circular current loop of radius 1.94 cm carries a current of 1.83 mA. What is the magnitude of the torque if the dipole is oriented at 43 ° to a uniform magnetic fied of 0.156 T?

- a) 1.903E-07 N m
- b) 2.093E-07 N m
- c) 2.302E-07 N m
- d) 2.532E-07 N m
- e) 2.785E-07 N m

2) A charged particle in a magnetic field of 4.660E-04 T is moving perpendicular to the magnetic field with a speed of 7.720E+05 m/s. What is the period of orbit if orbital radius is 0.747 m?

- a) 6.080E-06 s
- b) 6.688E-06 s
- c) 7.356E-06 s
- d) 8.092E-06 s
- e) 8.901E-06 s

3) A long rigind wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?

- a) 3.575E+00 N/m
- b) 3.932E+00 N/m
- c) 4.325E+00 N/m
- d) 4.758E+00 N/m
- e) 5.234E+00 N/m

#### KEY:QB:Ch 11:V0[edit]

QB153089888025

1) A circular current loop of radius 1.94 cm carries a current of 1.83 mA. What is the magnitude of the torque if the dipole is oriented at 43 ° to a uniform magnetic fied of 0.156 T?

- -a) 1.903E-07 N m
- -b) 2.093E-07 N m
- +c) 2.302E-07 N m
- -d) 2.532E-07 N m
- -e) 2.785E-07 N m

2) A charged particle in a magnetic field of 4.660E-04 T is moving perpendicular to the magnetic field with a speed of 7.720E+05 m/s. What is the period of orbit if orbital radius is 0.747 m?

- +a) 6.080E-06 s
- -b) 6.688E-06 s
- -c) 7.356E-06 s
- -d) 8.092E-06 s
- -e) 8.901E-06 s

3) A long rigind wire carries a 6 A current. What is the magnetic force per unit length on the wire if a 0.623 T magnetic field is directed 73° away from the wire?

- +a) 3.575E+00 N/m
- -b) 3.932E+00 N/m
- -c) 4.325E+00 N/m
- -d) 4.758E+00 N/m
- -e) 5.234E+00 N/m

### QB:Ch 11:V1[edit]

QB153089888025

1) A long rigind wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?

- a) 4.950E-01 N/m
- b) 5.445E-01 N/m
- c) 5.990E-01 N/m
- d) 6.589E-01 N/m
- e) 7.248E-01 N/m

2) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?

- a) 5.792E-06 s
- b) 6.371E-06 s
- c) 7.008E-06 s
- d) 7.709E-06 s
- e) 8.480E-06 s

3) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?

- a) 4.188E-07 N m
- b) 4.607E-07 N m
- c) 5.068E-07 N m
- d) 5.574E-07 N m
- e) 6.132E-07 N m

#### KEY:QB:Ch 11:V1[edit]

QB153089888025

1) A long rigind wire carries a 3 A current. What is the magnetic force per unit length on the wire if a 0.534 T magnetic field is directed 18° away from the wire?

- +a) 4.950E-01 N/m
- -b) 5.445E-01 N/m
- -c) 5.990E-01 N/m
- -d) 6.589E-01 N/m
- -e) 7.248E-01 N/m

2) A charged particle in a magnetic field of 3.410E-04 T is moving perpendicular to the magnetic field with a speed of 5.010E+05 m/s. What is the period of orbit if orbital radius is 0.508 m?

- -a) 5.792E-06 s
- +b) 6.371E-06 s
- -c) 7.008E-06 s
- -d) 7.709E-06 s
- -e) 8.480E-06 s

3) A circular current loop of radius 2.21 cm carries a current of 1.43 mA. What is the magnitude of the torque if the dipole is oriented at 67 ° to a uniform magnetic fied of 0.276 T?

- -a) 4.188E-07 N m
- -b) 4.607E-07 N m
- -c) 5.068E-07 N m
- +d) 5.574E-07 N m
- -e) 6.132E-07 N m

### QB:Ch 11:V2[edit]

QB153089888025

1) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.379 T magnetic field is directed 53° away from the wire?

- a) 1.001E+00 N/m
- b) 1.101E+00 N/m
- c) 1.211E+00 N/m
- d) 1.332E+00 N/m
- e) 1.465E+00 N/m

2) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?

- a) 4.543E-06 s
- b) 4.997E-06 s
- c) 5.497E-06 s
- d) 6.046E-06 s
- e) 6.651E-06 s

3) A circular current loop of radius 2.48 cm carries a current of 3.67 mA. What is the magnitude of the torque if the dipole is oriented at 21 ° to a uniform magnetic fied of 0.402 T?

- a) 1.022E-06 N m
- b) 1.124E-06 N m
- c) 1.236E-06 N m
- d) 1.360E-06 N m
- e) 1.496E-06 N m

#### KEY:QB:Ch 11:V2[edit]

QB153089888025

1) A long rigind wire carries a 4 A current. What is the magnetic force per unit length on the wire if a 0.379 T magnetic field is directed 53° away from the wire?

- -a) 1.001E+00 N/m
- -b) 1.101E+00 N/m
- +c) 1.211E+00 N/m
- -d) 1.332E+00 N/m
- -e) 1.465E+00 N/m

2) A charged particle in a magnetic field of 4.090E-04 T is moving perpendicular to the magnetic field with a speed of 5.980E+05 m/s. What is the period of orbit if orbital radius is 0.633 m?

- -a) 4.543E-06 s
- -b) 4.997E-06 s
- -c) 5.497E-06 s
- -d) 6.046E-06 s
- +e) 6.651E-06 s

3) A circular current loop of radius 2.48 cm carries a current of 3.67 mA. What is the magnitude of the torque if the dipole is oriented at 21 ° to a uniform magnetic fied of 0.402 T?

- +a) 1.022E-06 N m
- -b) 1.124E-06 N m
- -c) 1.236E-06 N m
- -d) 1.360E-06 N m
- -e) 1.496E-06 N m

### QB:Ch 12:V0[edit]

QB153089888025

1) Two loops of wire carry the same current of 29 kA, and flow in the same direction. They share a common axis and orientation. One loop has a radius of 0.76 m while the other has a radius of 1.12 m. What is the magnitude of the magnetic field at a point on the axis of both loops, situated between the loops at a distance 0.544 m from the first (smaller) loopif the disance between the loops is 1.56 m?

- a) 1.950E-02 T
- b) 2.145E-02 T
- c) 2.360E-02 T
- d) 2.596E-02 T
- e) 2.855E-02 T

_{1}, I

_{2}, I

_{2}) are (1.92 A, 1.14 A, 1.11 A), respectively. What is the x-component of the magnetic field at point P?

- a) B
_{x}= 4.333E-05 T - b) B
_{x}= 4.766E-05 T - c) B
_{x}= 5.243E-05 T - d) B
_{x}= 5.767E-05 T - e) B
_{x}= 6.343E-05 T

_{1}and I

_{3}flow out of the page, and I

_{2}flows into the page, as shown. Two closed paths are shown, labeled and . If I

_{1}=2.38 kA, I

_{2}=0.839 kA, and I

_{3}=2.27 kA, take the path and evalulate the line integral,

:

- a) 4.354E-03 T-m
- b) 4.789E-03 T-m
- c) 5.268E-03 T-m
- d) 5.795E-03 T-m
- e) 6.374E-03 T-m

#### KEY:QB:Ch 12:V0[edit]

QB153089888025

1) Two loops of wire carry the same current of 29 kA, and flow in the same direction. They share a common axis and orientation. One loop has a radius of 0.76 m while the other has a radius of 1.12 m. What is the magnitude of the magnetic field at a point on the axis of both loops, situated between the loops at a distance 0.544 m from the first (smaller) loopif the disance between the loops is 1.56 m?

- +a) 1.950E-02 T
- -b) 2.145E-02 T
- -c) 2.360E-02 T
- -d) 2.596E-02 T
- -e) 2.855E-02 T

_{1}, I

_{2}, I

_{2}) are (1.92 A, 1.14 A, 1.11 A), respectively. What is the x-component of the magnetic field at point P?

- -a) B
_{x}= 4.333E-05 T - +b) B
_{x}= 4.766E-05 T - -c) B
_{x}= 5.243E-05 T - -d) B
_{x}= 5.767E-05 T - -e) B
_{x}= 6.343E-05 T

_{1}and I

_{3}flow out of the page, and I

_{2}flows into the page, as shown. Two closed paths are shown, labeled and . If I

_{1}=2.38 kA, I

_{2}=0.839 kA, and I

_{3}=2.27 kA, take the path and evalulate the line integral,

:

- -a) 4.354E-03 T-m
- +b) 4.789E-03 T-m
- -c) 5.268E-03 T-m
- -d) 5.795E-03 T-m
- -e) 6.374E-03 T-m

### QB:Ch 12:V1[edit]

QB153089888025

_{1}and I

_{3}flow out of the page, and I

_{2}flows into the page, as shown. Two closed paths are shown, labeled and . If I

_{1}=2.81 kA, I

_{2}=1.2 kA, and I

_{3}=1.84 kA, take the path and evalulate the line integral,

:

- a) 3.583E-03 T-m
- b) 3.941E-03 T-m
- c) 4.335E-03 T-m
- d) 4.769E-03 T-m
- e) 5.246E-03 T-m

2) Two loops of wire carry the same current of 88 kA, and flow in the same direction. They share a common axis and orientation. One loop has a radius of 0.655 m while the other has a radius of 1.11 m. What is the magnitude of the magnetic field at a point on the axis of both loops, situated between the loops at a distance 0.531 m from the first (smaller) loopif the disance between the loops is 1.72 m?

- a) 4.162E-02 T
- b) 4.578E-02 T
- c) 5.036E-02 T
- d) 5.540E-02 T
- e) 6.094E-02 T

_{1}, I

_{2}, I

_{2}) are (1.16 A, 2.46 A, 2.15 A), respectively. What is the x-component of the magnetic field at point P?

- a) B
_{x}= 9.053E-05 T - b) B
_{x}= 9.959E-05 T - c) B
_{x}= 1.095E-04 T - d) B
_{x}= 1.205E-04 T - e) B
_{x}= 1.325E-04 T

#### KEY:QB:Ch 12:V1[edit]

QB153089888025

_{1}and I

_{3}flow out of the page, and I

_{2}flows into the page, as shown. Two closed paths are shown, labeled and . If I

_{1}=2.81 kA, I

_{2}=1.2 kA, and I

_{3}=1.84 kA, take the path and evalulate the line integral,

:

- -a) 3.583E-03 T-m
- -b) 3.941E-03 T-m
- +c) 4.335E-03 T-m
- -d) 4.769E-03 T-m
- -e) 5.246E-03 T-m

2) Two loops of wire carry the same current of 88 kA, and flow in the same direction. They share a common axis and orientation. One loop has a radius of 0.655 m while the other has a radius of 1.11 m. What is the magnitude of the magnetic field at a point on the axis of both loops, situated between the loops at a distance 0.531 m from the first (smaller) loopif the disance between the loops is 1.72 m?

- -a) 4.162E-02 T
- -b) 4.578E-02 T
- -c) 5.036E-02 T
- +d) 5.540E-02 T
- -e) 6.094E-02 T

_{1}, I

_{2}, I

_{2}) are (1.16 A, 2.46 A, 2.15 A), respectively. What is the x-component of the magnetic field at point P?

- -a) B
_{x}= 9.053E-05 T - -b) B
_{x}= 9.959E-05 T - -c) B
_{x}= 1.095E-04 T - -d) B
_{x}= 1.205E-04 T - +e) B
_{x}= 1.325E-04 T

### QB:Ch 12:V2[edit]

QB153089888025

1) Two loops of wire carry the same current of 11 kA, and flow in the same direction. They share a common axis and orientation. One loop has a radius of 0.424 m while the other has a radius of 1.32 m. What is the magnitude of the magnetic field at a point on the axis of both loops, situated between the loops at a distance 0.52 m from the first (smaller) loopif the disance between the loops is 1.25 m?

- a) 7.623E-03 T
- b) 8.385E-03 T
- c) 9.223E-03 T
- d) 1.015E-02 T
- e) 1.116E-02 T

_{1}, I

_{2}, I

_{2}) are (1.76 A, 1.02 A, 1.08 A), respectively. What is the x-component of the magnetic field at point P?

- a) B
_{x}= 3.394E-05 T - b) B
_{x}= 3.733E-05 T - c) B
_{x}= 4.106E-05 T - d) B
_{x}= 4.517E-05 T - e) B
_{x}= 4.969E-05 T

_{1}and I

_{3}flow out of the page, and I

_{2}flows into the page, as shown. Two closed paths are shown, labeled and . If I

_{1}=2.78 kA, I

_{2}=2.61 kA, and I

_{3}=3.76 kA, take the path and evalulate the line integral,

:

- a) 4.939E-03 T-m
- b) 5.432E-03 T-m
- c) 5.976E-03 T-m
- d) 6.573E-03 T-m
- e) 7.231E-03 T-m

#### KEY:QB:Ch 12:V2[edit]

QB153089888025

1) Two loops of wire carry the same current of 11 kA, and flow in the same direction. They share a common axis and orientation. One loop has a radius of 0.424 m while the other has a radius of 1.32 m. What is the magnitude of the magnetic field at a point on the axis of both loops, situated between the loops at a distance 0.52 m from the first (smaller) loopif the disance between the loops is 1.25 m?

- +a) 7.623E-03 T
- -b) 8.385E-03 T
- -c) 9.223E-03 T
- -d) 1.015E-02 T
- -e) 1.116E-02 T

_{1}, I

_{2}, I

_{2}) are (1.76 A, 1.02 A, 1.08 A), respectively. What is the x-component of the magnetic field at point P?

- -a) B
_{x}= 3.394E-05 T - -b) B
_{x}= 3.733E-05 T - -c) B
_{x}= 4.106E-05 T - -d) B
_{x}= 4.517E-05 T - +e) B
_{x}= 4.969E-05 T

_{1}and I

_{3}flow out of the page, and I

_{2}flows into the page, as shown. Two closed paths are shown, labeled and . If I

_{1}=2.78 kA, I

_{2}=2.61 kA, and I

_{3}=3.76 kA, take the path and evalulate the line integral,

:

- +a) 4.939E-03 T-m
- -b) 5.432E-03 T-m
- -c) 5.976E-03 T-m
- -d) 6.573E-03 T-m
- -e) 7.231E-03 T-m

### QB:Ch 13:V0[edit]

QB153089888025

1) A time dependent magnetic field is directed perpendicular to the plane of a circular coil with a radius of 0.227 m. The magnetic field is spatially uniform but decays in time according to , where 3.92 s. What is the current in the coil if the impedance of the coil is 22.7 Ω?

- a) 1.082E-01 A
- b) 1.190E-01 A
- c) 1.309E-01 A
- d) 1.440E-01 A
- e) 1.584E-01 A

--(

*Answer & Why this question is different.*)

- a) 6.534E+01 cm
^{3}/s - b) 7.188E+01 cm
^{3}/s - c) 7.907E+01 cm
^{3}/s - d) 8.697E+01 cm
^{3}/s - e) 9.567E+01 cm
^{3}/s

3) The current through the windings of a solenoid with n= 1.820E+03 turns per meter is changing at a rate dI/dt=7 A/s. The solenoid is 78 cm long and has a cross-sectional diameter of 3.26 cm. A small coil consisting of N=35turns wraped in a circle of diameter 1.68 cm is placed in the middle of the solenoid such that the plane of the coil is perpendicular to the central axis of the solenoid. Assume that the infinite-solenoid approximation is valid inside the small coil. What is the emf induced in the coil?

- a) 1.242E-04 V
- b) 1.366E-04 V
- c) 1.503E-04 V
- d) 1.653E-04 V
- e) 1.819E-04 V

#### KEY:QB:Ch 13:V0[edit]

QB153089888025

1) A time dependent magnetic field is directed perpendicular to the plane of a circular coil with a radius of 0.227 m. The magnetic field is spatially uniform but decays in time according to , where 3.92 s. What is the current in the coil if the impedance of the coil is 22.7 Ω?

- -a) 1.082E-01 A
- +b) 1.190E-01 A
- -c) 1.309E-01 A
- -d) 1.440E-01 A
- -e) 1.584E-01 A

--(

*Answer & Why this question is different.*)

- -a) 6.534E+01 cm
^{3}/s - -b) 7.188E+01 cm
^{3}/s - +c) 7.907E+01 cm
^{3}/s - -d) 8.697E+01 cm
^{3}/s - -e) 9.567E+01 cm
^{3}/s

3) The current through the windings of a solenoid with n= 1.820E+03 turns per meter is changing at a rate dI/dt=7 A/s. The solenoid is 78 cm long and has a cross-sectional diameter of 3.26 cm. A small coil consisting of N=35turns wraped in a circle of diameter 1.68 cm is placed in the middle of the solenoid such that the plane of the coil is perpendicular to the central axis of the solenoid. Assume that the infinite-solenoid approximation is valid inside the small coil. What is the emf induced in the coil?

- +a) 1.242E-04 V
- -b) 1.366E-04 V
- -c) 1.503E-04 V
- -d) 1.653E-04 V
- -e) 1.819E-04 V

### QB:Ch 13:V1[edit]

QB153089888025

1) The current through the windings of a solenoid with n= 2.590E+03 turns per meter is changing at a rate dI/dt=11 A/s. The solenoid is 95 cm long and has a cross-sectional diameter of 2.29 cm. A small coil consisting of N=25turns wraped in a circle of diameter 1.15 cm is placed in the middle of the solenoid such that the plane of the coil is perpendicular to the central axis of the solenoid. Assume that the infinite-solenoid approximation is valid inside the small coil. What is the emf induced in the coil?

- a) 6.985E-05 V
- b) 7.683E-05 V
- c) 8.452E-05 V
- d) 9.297E-05 V
- e) 1.023E-04 V

2) A time dependent magnetic field is directed perpendicular to the plane of a circular coil with a radius of 0.274 m. The magnetic field is spatially uniform but decays in time according to , where 9.59 s. What is the current in the coil if the impedance of the coil is 33.0 Ω?

- a) 7.007E-02 A
- b) 7.708E-02 A
- c) 8.479E-02 A
- d) 9.327E-02 A
- e) 1.026E-01 A

--(

*Answer & Why this question is different.*)

- a) 5.834E+01 cm
^{3}/s - b) 6.418E+01 cm
^{3}/s - c) 7.059E+01 cm
^{3}/s - d) 7.765E+01 cm
^{3}/s - e) 8.542E+01 cm
^{3}/s

#### KEY:QB:Ch 13:V1[edit]

QB153089888025

1) The current through the windings of a solenoid with n= 2.590E+03 turns per meter is changing at a rate dI/dt=11 A/s. The solenoid is 95 cm long and has a cross-sectional diameter of 2.29 cm. A small coil consisting of N=25turns wraped in a circle of diameter 1.15 cm is placed in the middle of the solenoid such that the plane of the coil is perpendicular to the central axis of the solenoid. Assume that the infinite-solenoid approximation is valid inside the small coil. What is the emf induced in the coil?

- -a) 6.985E-05 V
- -b) 7.683E-05 V
- -c) 8.452E-05 V
- +d) 9.297E-05 V
- -e) 1.023E-04 V

2) A time dependent magnetic field is directed perpendicular to the plane of a circular coil with a radius of 0.274 m. The magnetic field is spatially uniform but decays in time according to , where 9.59 s. What is the current in the coil if the impedance of the coil is 33.0 Ω?

- -a) 7.007E-02 A
- -b) 7.708E-02 A
- +c) 8.479E-02 A
- -d) 9.327E-02 A
- -e) 1.026E-01 A

--(

*Answer & Why this question is different.*)

- -a) 5.834E+01 cm
^{3}/s - +b) 6.418E+01 cm
^{3}/s - -c) 7.059E+01 cm
^{3}/s - -d) 7.765E+01 cm
^{3}/s - -e) 8.542E+01 cm
^{3}/s

### QB:Ch 13:V2[edit]

QB153089888025

1) A time dependent magnetic field is directed perpendicular to the plane of a circular coil with a radius of 0.655 m. The magnetic field is spatially uniform but decays in time according to , where 9.62 s. What is the current in the coil if the impedance of the coil is 48.9 Ω?

- a) 7.890E-01 A
- b) 8.679E-01 A
- c) 9.547E-01 A
- d) 1.050E+00 A
- e) 1.155E+00 A

--(

*Answer & Why this question is different.*)

- a) 1.128E+02 cm
^{3}/s - b) 1.241E+02 cm
^{3}/s - c) 1.365E+02 cm
^{3}/s - d) 1.502E+02 cm
^{3}/s - e) 1.652E+02 cm
^{3}/s

3) The current through the windings of a solenoid with n= 2.400E+03 turns per meter is changing at a rate dI/dt=3 A/s. The solenoid is 93 cm long and has a cross-sectional diameter of 2.13 cm. A small coil consisting of N=30turns wraped in a circle of diameter 1.35 cm is placed in the middle of the solenoid such that the plane of the coil is perpendicular to the central axis of the solenoid. Assume that the infinite-solenoid approximation is valid inside the small coil. What is the emf induced in the coil?

- a) 3.885E-05 V
- b) 4.274E-05 V
- c) 4.701E-05 V
- d) 5.171E-05 V
- e) 5.688E-05 V

#### KEY:QB:Ch 13:V2[edit]

QB153089888025

1) A time dependent magnetic field is directed perpendicular to the plane of a circular coil with a radius of 0.655 m. The magnetic field is spatially uniform but decays in time according to , where 9.62 s. What is the current in the coil if the impedance of the coil is 48.9 Ω?

- +a) 7.890E-01 A
- -b) 8.679E-01 A
- -c) 9.547E-01 A
- -d) 1.050E+00 A
- -e) 1.155E+00 A

--(

*Answer & Why this question is different.*)

- -a) 1.128E+02 cm
^{3}/s - -b) 1.241E+02 cm
^{3}/s - -c) 1.365E+02 cm
^{3}/s - +d) 1.502E+02 cm
^{3}/s - -e) 1.652E+02 cm
^{3}/s

3) The current through the windings of a solenoid with n= 2.400E+03 turns per meter is changing at a rate dI/dt=3 A/s. The solenoid is 93 cm long and has a cross-sectional diameter of 2.13 cm. A small coil consisting of N=30turns wraped in a circle of diameter 1.35 cm is placed in the middle of the solenoid such that the plane of the coil is perpendicular to the central axis of the solenoid. Assume that the infinite-solenoid approximation is valid inside the small coil. What is the emf induced in the coil?

- +a) 3.885E-05 V
- -b) 4.274E-05 V
- -c) 4.701E-05 V
- -d) 5.171E-05 V
- -e) 5.688E-05 V

### QB:Ch 14:V0[edit]

QB153089888025

_{1}is suddenly closed at time t=0 in the figure shown. What is the current at t =1.55 s if ε = 5.97 V , R = 7.74 Ω, and L = 2.62 H?

- a) 3.682E-01 V
- b) 4.418E-01 V
- c) 5.301E-01 V
- d) 6.362E-01 V
- e) 7.634E-01 V

- a) 6.604E-02 V
- b) 7.264E-02 V
- c) 7.990E-02 V
- d) 8.789E-02 V
- e) 9.668E-02 V

3) In an LC circuit, the self-inductance is 0.0216 H and the capacitance is 6.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.240E-05 C. How long does it take for the capacitor to become completely discharged?

- a) 4.846E-04 s
- b) 5.330E-04 s
- c) 5.863E-04 s
- d) 6.449E-04 s
- e) 7.094E-04 s

#### KEY:QB:Ch 14:V0[edit]

QB153089888025

_{1}is suddenly closed at time t=0 in the figure shown. What is the current at t =1.55 s if ε = 5.97 V , R = 7.74 Ω, and L = 2.62 H?

- -a) 3.682E-01 V
- -b) 4.418E-01 V
- -c) 5.301E-01 V
- -d) 6.362E-01 V
- +e) 7.634E-01 V

- +a) 6.604E-02 V
- -b) 7.264E-02 V
- -c) 7.990E-02 V
- -d) 8.789E-02 V
- -e) 9.668E-02 V

3) In an LC circuit, the self-inductance is 0.0216 H and the capacitance is 6.450E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 1.240E-05 C. How long does it take for the capacitor to become completely discharged?

- -a) 4.846E-04 s
- -b) 5.330E-04 s
- +c) 5.863E-04 s
- -d) 6.449E-04 s
- -e) 7.094E-04 s

### QB:Ch 14:V1[edit]

QB153089888025

1) In an LC circuit, the self-inductance is 0.0815 H and the capacitance is 6.520E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.410E-05 C. How long does it take for the capacitor to become completely discharged?

- a) 7.821E-04 s
- b) 8.603E-04 s
- c) 9.463E-04 s
- d) 1.041E-03 s
- e) 1.145E-03 s

_{1}is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?

- a) 6.567E-01 V
- b) 7.880E-01 V
- c) 9.456E-01 V
- d) 1.135E+00 V
- e) 1.362E+00 V

- a) 2.643E-02 V
- b) 2.907E-02 V
- c) 3.198E-02 V
- d) 3.518E-02 V
- e) 3.869E-02 V

#### KEY:QB:Ch 14:V1[edit]

QB153089888025

1) In an LC circuit, the self-inductance is 0.0815 H and the capacitance is 6.520E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 8.410E-05 C. How long does it take for the capacitor to become completely discharged?

- -a) 7.821E-04 s
- -b) 8.603E-04 s
- -c) 9.463E-04 s
- -d) 1.041E-03 s
- +e) 1.145E-03 s

_{1}is suddenly closed at time t=0 in the figure shown. What is the current at t =5.9 s if ε = 7.85 V , R = 6.89 Ω, and L = 7.36 H?

- -a) 6.567E-01 V
- -b) 7.880E-01 V
- -c) 9.456E-01 V
- +d) 1.135E+00 V
- -e) 1.362E+00 V

- -a) 2.643E-02 V
- +b) 2.907E-02 V
- -c) 3.198E-02 V
- -d) 3.518E-02 V
- -e) 3.869E-02 V

### QB:Ch 14:V2[edit]

QB153089888025

- a) 6.604E-02 V
- b) 7.264E-02 V
- c) 7.990E-02 V
- d) 8.789E-02 V
- e) 9.668E-02 V

2) In an LC circuit, the self-inductance is 0.0116 H and the capacitance is 7.040E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.140E-05 C. How long does it take for the capacitor to become completely discharged?

- a) 4.489E-04 s
- b) 4.938E-04 s
- c) 5.432E-04 s
- d) 5.975E-04 s
- e) 6.572E-04 s

_{1}is suddenly closed at time t=0 in the figure shown. What is the current at t =6.88 s if ε = 2.58 V , R = 5.69 Ω, and L = 6.94 H?

- a) 4.518E-01 V
- b) 5.422E-01 V
- c) 6.506E-01 V
- d) 7.807E-01 V
- e) 9.369E-01 V

#### KEY:QB:Ch 14:V2[edit]

QB153089888025

- +a) 6.604E-02 V
- -b) 7.264E-02 V
- -c) 7.990E-02 V
- -d) 8.789E-02 V
- -e) 9.668E-02 V

2) In an LC circuit, the self-inductance is 0.0116 H and the capacitance is 7.040E-06 F. At t=0 all the energy is stored in the capacitor, which has a charge of 6.140E-05 C. How long does it take for the capacitor to become completely discharged?

- +a) 4.489E-04 s
- -b) 4.938E-04 s
- -c) 5.432E-04 s
- -d) 5.975E-04 s
- -e) 6.572E-04 s

_{1}is suddenly closed at time t=0 in the figure shown. What is the current at t =6.88 s if ε = 2.58 V , R = 5.69 Ω, and L = 6.94 H?

- +a) 4.518E-01 V
- -b) 5.422E-01 V
- -c) 6.506E-01 V
- -d) 7.807E-01 V
- -e) 9.369E-01 V

### QB:Ch 15:V0[edit]

QB153089888025

1) A step-down transformer steps 18 kV down to 260 V. The high-voltage input is provided by a 290 Ω power line that carries 3 A of currentWhat is the output current (at the 260 V side ?)

- a) 1.888E+02 A
- b) 2.077E+02 A
- c) 2.285E+02 A
- d) 2.513E+02 A
- e) 2.764E+02 A

2) The output of an ac generator connected to an RLC series combination has a frequency of 810 Hz and an amplitude of 0.64 V;. If R =6 Ω, L= 8.70E-03H , and C=8.20E-04 F, what is the impedance?

- a) 4.444E+01 Ω
- b) 4.889E+01 Ω
- c) 5.378E+01 Ω
- d) 5.916E+01 Ω
- e) 6.507E+01 Ω

3) The quality factor Q is a dimensionless paramater involving the relative values of the magnitudes of the at three impedances (R, X_{L}, X_{C}). Since Q is calculatedat resonance, X_{L}, X_{C} and only twoimpedances are involved, Q=≡ω_{0}L/R is definedso that Q is large if the resistance is low. Calculate the Q of an LRC series driven at resonance by an applied voltage of of V=V_{0}sin(ωt), where V_{0}=2 V. The resistance, inductance, and capacitance are R =0.25 Ω, L= 5.40E-03H , and C=3.20E-06 F, respectively.

- a) Q = 9.395E+01
- b) Q = 1.080E+02
- c) Q = 1.242E+02
- d) Q = 1.429E+02
- e) Q = 1.643E+02

#### KEY:QB:Ch 15:V0[edit]

QB153089888025

1) A step-down transformer steps 18 kV down to 260 V. The high-voltage input is provided by a 290 Ω power line that carries 3 A of currentWhat is the output current (at the 260 V side ?)

- -a) 1.888E+02 A
- +b) 2.077E+02 A
- -c) 2.285E+02 A
- -d) 2.513E+02 A
- -e) 2.764E+02 A

2) The output of an ac generator connected to an RLC series combination has a frequency of 810 Hz and an amplitude of 0.64 V;. If R =6 Ω, L= 8.70E-03H , and C=8.20E-04 F, what is the impedance?

- +a) 4.444E+01 Ω
- -b) 4.889E+01 Ω
- -c) 5.378E+01 Ω
- -d) 5.916E+01 Ω
- -e) 6.507E+01 Ω

3) The quality factor Q is a dimensionless paramater involving the relative values of the magnitudes of the at three impedances (R, X_{L}, X_{C}). Since Q is calculatedat resonance, X_{L}, X_{C} and only twoimpedances are involved, Q=≡ω_{0}L/R is definedso that Q is large if the resistance is low. Calculate the Q of an LRC series driven at resonance by an applied voltage of of V=V_{0}sin(ωt), where V_{0}=2 V. The resistance, inductance, and capacitance are R =0.25 Ω, L= 5.40E-03H , and C=3.20E-06 F, respectively.

- -a) Q = 9.395E+01
- -b) Q = 1.080E+02
- -c) Q = 1.242E+02
- -d) Q = 1.429E+02
- +e) Q = 1.643E+02

### QB:Ch 15:V1[edit]

QB153089888025

1) A step-down transformer steps 16 kV down to 210 V. The high-voltage input is provided by a 200 Ω power line that carries 7 A of currentWhat is the output current (at the 210 V side ?)

- a) 4.007E+02 A
- b) 4.408E+02 A
- c) 4.848E+02 A
- d) 5.333E+02 A
- e) 5.867E+02 A

2) The quality factor Q is a dimensionless paramater involving the relative values of the magnitudes of the at three impedances (R, X_{L}, X_{C}). Since Q is calculatedat resonance, X_{L}, X_{C} and only twoimpedances are involved, Q=≡ω_{0}L/R is definedso that Q is large if the resistance is low. Calculate the Q of an LRC series driven at resonance by an applied voltage of of V=V_{0}sin(ωt), where V_{0}=5 V. The resistance, inductance, and capacitance are R =0.17 Ω, L= 4.40E-03H , and C=3.40E-06 F, respectively.

- a) Q = 1.391E+02
- b) Q = 1.600E+02
- c) Q = 1.840E+02
- d) Q = 2.116E+02
- e) Q = 2.434E+02

3) The output of an ac generator connected to an RLC series combination has a frequency of 1.00E+03 Hz and an amplitude of 0.6 V;. If R =3 Ω, L= 1.70E-03H , and C=5.40E-04 F, what is the impedance?

- a) 8.123E+00 Ω
- b) 8.935E+00 Ω
- c) 9.828E+00 Ω
- d) 1.081E+01 Ω
- e) 1.189E+01 Ω

#### KEY:QB:Ch 15:V1[edit]

QB153089888025

1) A step-down transformer steps 16 kV down to 210 V. The high-voltage input is provided by a 200 Ω power line that carries 7 A of currentWhat is the output current (at the 210 V side ?)

- -a) 4.007E+02 A
- -b) 4.408E+02 A
- -c) 4.848E+02 A
- +d) 5.333E+02 A
- -e) 5.867E+02 A

2) The quality factor Q is a dimensionless paramater involving the relative values of the magnitudes of the at three impedances (R, X_{L}, X_{C}). Since Q is calculatedat resonance, X_{L}, X_{C} and only twoimpedances are involved, Q=≡ω_{0}L/R is definedso that Q is large if the resistance is low. Calculate the Q of an LRC series driven at resonance by an applied voltage of of V=V_{0}sin(ωt), where V_{0}=5 V. The resistance, inductance, and capacitance are R =0.17 Ω, L= 4.40E-03H , and C=3.40E-06 F, respectively.

- -a) Q = 1.391E+02
- -b) Q = 1.600E+02
- -c) Q = 1.840E+02
- +d) Q = 2.116E+02
- -e) Q = 2.434E+02

3) The output of an ac generator connected to an RLC series combination has a frequency of 1.00E+03 Hz and an amplitude of 0.6 V;. If R =3 Ω, L= 1.70E-03H , and C=5.40E-04 F, what is the impedance?

- -a) 8.123E+00 Ω
- -b) 8.935E+00 Ω
- -c) 9.828E+00 Ω
- +d) 1.081E+01 Ω
- -e) 1.189E+01 Ω

### QB:Ch 15:V2[edit]

QB153089888025

1) The quality factor Q is a dimensionless paramater involving the relative values of the magnitudes of the at three impedances (R, X_{L}, X_{C}). Since Q is calculatedat resonance, X_{L}, X_{C} and only twoimpedances are involved, Q=≡ω_{0}L/R is definedso that Q is large if the resistance is low. Calculate the Q of an LRC series driven at resonance by an applied voltage of of V=V_{0}sin(ωt), where V_{0}=5 V. The resistance, inductance, and capacitance are R =0.17 Ω, L= 4.40E-03H , and C=3.40E-06 F, respectively.

- a) Q = 1.391E+02
- b) Q = 1.600E+02
- c) Q = 1.840E+02
- d) Q = 2.116E+02
- e) Q = 2.434E+02

2) The output of an ac generator connected to an RLC series combination has a frequency of 690 Hz and an amplitude of 0.4 V;. If R =3 Ω, L= 3.00E-03H , and C=8.30E-04 F, what is the impedance?

- a) 1.308E+01 Ω
- b) 1.438E+01 Ω
- c) 1.582E+01 Ω
- d) 1.741E+01 Ω
- e) 1.915E+01 Ω

3) A step-down transformer steps 9 kV down to 210 V. The high-voltage input is provided by a 170 Ω power line that carries 5 A of currentWhat is the output current (at the 210 V side ?)

- a) 1.948E+02 A
- b) 2.143E+02 A
- c) 2.357E+02 A
- d) 2.593E+02 A
- e) 2.852E+02 A

#### KEY:QB:Ch 15:V2[edit]

QB153089888025

1) The quality factor Q is a dimensionless paramater involving the relative values of the magnitudes of the at three impedances (R, X_{L}, X_{C}). Since Q is calculatedat resonance, X_{L}, X_{C} and only twoimpedances are involved, Q=≡ω_{0}L/R is definedso that Q is large if the resistance is low. Calculate the Q of an LRC series driven at resonance by an applied voltage of of V=V_{0}sin(ωt), where V_{0}=5 V. The resistance, inductance, and capacitance are R =0.17 Ω, L= 4.40E-03H , and C=3.40E-06 F, respectively.

- -a) Q = 1.391E+02
- -b) Q = 1.600E+02
- -c) Q = 1.840E+02
- +d) Q = 2.116E+02
- -e) Q = 2.434E+02

2) The output of an ac generator connected to an RLC series combination has a frequency of 690 Hz and an amplitude of 0.4 V;. If R =3 Ω, L= 3.00E-03H , and C=8.30E-04 F, what is the impedance?

- +a) 1.308E+01 Ω
- -b) 1.438E+01 Ω
- -c) 1.582E+01 Ω
- -d) 1.741E+01 Ω
- -e) 1.915E+01 Ω

3) A step-down transformer steps 9 kV down to 210 V. The high-voltage input is provided by a 170 Ω power line that carries 5 A of currentWhat is the output current (at the 210 V side ?)

- -a) 1.948E+02 A
- +b) 2.143E+02 A
- -c) 2.357E+02 A
- -d) 2.593E+02 A
- -e) 2.852E+02 A

### QB:Ch 16:V0[edit]

QB153089888025

1) A 48 kW radio transmitter on Earth sends it signal to a satellite 130 km away. At what distance in the same direction would the signal have the same maximum field strength if the transmitter's output power were increased to 80 kW?

- a) 1.678E+02 km
- b) 1.846E+02 km
- c) 2.031E+02 km
- d) 2.234E+02 km
- e) 2.457E+02 km

^{2}and separation d=4.60E-03 m is connected via a swith to a 96 Ω resistor and a battery of voltage V

_{0}=90 V as shown in the figure. The current starts to flow at time t=0 when the switch is closed. What is the magnitude of the displacement current at time t=3.30E-04?

- a) 7.315E-02 A
- b) 8.047E-02 A
- c) 8.851E-02 A
- d) 9.737E-02 A
- e) 1.071E-01 A

^{2}and separation d=7.60E-03 m is connected via a swith to a 80 Ω resistor and a battery of voltage V

_{0}=5 V as shown in the figure. The current starts to flow at time t=0 when the switch is closed. What is the magnitude of the electric field at time t=2.30E-04?

- a) 4.842E+02 V/m
- b) 5.326E+02 V/m
- c) 5.858E+02 V/m
- d) 6.444E+02 V/m
- e) 7.089E+02 V/m

#### KEY:QB:Ch 16:V0[edit]

QB153089888025

1) A 48 kW radio transmitter on Earth sends it signal to a satellite 130 km away. At what distance in the same direction would the signal have the same maximum field strength if the transmitter's output power were increased to 80 kW?

- +a) 1.678E+02 km
- -b) 1.846E+02 km
- -c) 2.031E+02 km
- -d) 2.234E+02 km
- -e) 2.457E+02 km

^{2}and separation d=4.60E-03 m is connected via a swith to a 96 Ω resistor and a battery of voltage V

_{0}=90 V as shown in the figure. The current starts to flow at time t=0 when the switch is closed. What is the magnitude of the displacement current at time t=3.30E-04?

- -a) 7.315E-02 A
- +b) 8.047E-02 A
- -c) 8.851E-02 A
- -d) 9.737E-02 A
- -e) 1.071E-01 A

^{2}and separation d=7.60E-03 m is connected via a swith to a 80 Ω resistor and a battery of voltage V

_{0}=5 V as shown in the figure. The current starts to flow at time t=0 when the switch is closed. What is the magnitude of the electric field at time t=2.30E-04?

- -a) 4.842E+02 V/m
- -b) 5.326E+02 V/m
- +c) 5.858E+02 V/m
- -d) 6.444E+02 V/m
- -e) 7.089E+02 V/m

### QB:Ch 16:V1[edit]

QB153089888025

^{2}and separation d=5.70E-03 m is connected via a swith to a 7 Ω resistor and a battery of voltage V

_{0}=97 V as shown in the figure. The current starts to flow at time t=0 when the switch is closed. What is the magnitude of the electric field at time t=7.00E-05?

- a) 1.049E+04 V/m
- b) 1.154E+04 V/m
- c) 1.269E+04 V/m
- d) 1.396E+04 V/m
- e) 1.535E+04 V/m

2) A 48 kW radio transmitter on Earth sends it signal to a satellite 130 km away. At what distance in the same direction would the signal have the same maximum field strength if the transmitter's output power were increased to 80 kW?

- a) 1.678E+02 km
- b) 1.846E+02 km
- c) 2.031E+02 km
- d) 2.234E+02 km
- e) 2.457E+02 km

^{2}and separation d=5.00E-03 m is connected via a swith to a 27 Ω resistor and a battery of voltage V

_{0}=80 V as shown in the figure. The current starts to flow at time t=0 when the switch is closed. What is the magnitude of the displacement current at time t=1.60E-04?

- a) 9.524E-01 A
- b) 1.048E+00 A
- c) 1.152E+00 A
- d) 1.268E+00 A
- e) 1.394E+00 A

#### KEY:QB:Ch 16:V1[edit]

QB153089888025

^{2}and separation d=5.70E-03 m is connected via a swith to a 7 Ω resistor and a battery of voltage V

_{0}=97 V as shown in the figure. The current starts to flow at time t=0 when the switch is closed. What is the magnitude of the electric field at time t=7.00E-05?

- -a) 1.049E+04 V/m
- -b) 1.154E+04 V/m
- -c) 1.269E+04 V/m
- -d) 1.396E+04 V/m
- +e) 1.535E+04 V/m

2) A 48 kW radio transmitter on Earth sends it signal to a satellite 130 km away. At what distance in the same direction would the signal have the same maximum field strength if the transmitter's output power were increased to 80 kW?

- +a) 1.678E+02 km
- -b) 1.846E+02 km
- -c) 2.031E+02 km
- -d) 2.234E+02 km
- -e) 2.457E+02 km

^{2}and separation d=5.00E-03 m is connected via a swith to a 27 Ω resistor and a battery of voltage V

_{0}=80 V as shown in the figure. The current starts to flow at time t=0 when the switch is closed. What is the magnitude of the displacement current at time t=1.60E-04?

- -a) 9.524E-01 A
- +b) 1.048E+00 A
- -c) 1.152E+00 A
- -d) 1.268E+00 A
- -e) 1.394E+00 A

### QB:Ch 16:V2[edit]

QB153089888025

^{2}and separation d=6.60E-03 m is connected via a swith to a 20 Ω resistor and a battery of voltage V

_{0}=59 V as shown in the figure. The current starts to flow at time t=0 when the switch is closed. What is the magnitude of the displacement current at time t=1.70E-04?

- a) 8.138E-01 A
- b) 8.952E-01 A
- c) 9.847E-01 A
- d) 1.083E+00 A
- e) 1.191E+00 A

^{2}and separation d=6.40E-03 m is connected via a swith to a 83 Ω resistor and a battery of voltage V

_{0}=56 V as shown in the figure. The current starts to flow at time t=0 when the switch is closed. What is the magnitude of the electric field at time t=1.40E-03?

- a) 7.767E+03 V/m
- b) 8.544E+03 V/m
- c) 9.398E+03 V/m
- d) 1.034E+04 V/m
- e) 1.137E+04 V/m

3) A 41 kW radio transmitter on Earth sends it signal to a satellite 100 km away. At what distance in the same direction would the signal have the same maximum field strength if the transmitter's output power were increased to 98 kW?

- a) 1.405E+02 km
- b) 1.546E+02 km
- c) 1.701E+02 km
- d) 1.871E+02 km
- e) 2.058E+02 km

#### KEY:QB:Ch 16:V2[edit]

QB153089888025

^{2}and separation d=6.60E-03 m is connected via a swith to a 20 Ω resistor and a battery of voltage V

_{0}=59 V as shown in the figure. The current starts to flow at time t=0 when the switch is closed. What is the magnitude of the displacement current at time t=1.70E-04?

- +a) 8.138E-01 A
- -b) 8.952E-01 A
- -c) 9.847E-01 A
- -d) 1.083E+00 A
- -e) 1.191E+00 A

^{2}and separation d=6.40E-03 m is connected via a swith to a 83 Ω resistor and a battery of voltage V

_{0}=56 V as shown in the figure. The current starts to flow at time t=0 when the switch is closed. What is the magnitude of the electric field at time t=1.40E-03?

- -a) 7.767E+03 V/m
- +b) 8.544E+03 V/m
- -c) 9.398E+03 V/m
- -d) 1.034E+04 V/m
- -e) 1.137E+04 V/m

3) A 41 kW radio transmitter on Earth sends it signal to a satellite 100 km away. At what distance in the same direction would the signal have the same maximum field strength if the transmitter's output power were increased to 98 kW?

- -a) 1.405E+02 km
- +b) 1.546E+02 km
- -c) 1.701E+02 km
- -d) 1.871E+02 km
- -e) 2.058E+02 km