# User:Guy vandegrift/Quizbank/Archive1/College Physics/II T2

## TrigPhysT2_151021

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### TrigPhysT2_151021-v1s1

1. An ideal 7.5 volt battery is connected to a 0.084 ohm resistor. To measure the current an ammeter with a resistance of 14${\displaystyle m\Omega }$ is used. What current does the ammeter actually read?

___a) 43.8 A.
___b) 50.3 A.
___c) 57.9 A.
___d) 66.5 A.
___e) 76.5 A.

2. The diameter of a copper wire is 9.2 mm, and it carries a current of 64 amps. What is the drift velocity if copper has a density of 8.8E3 kg/m3 and an atomic mass of 63.54 g/mol? (1 mol = 6.02E23 atoms, and copper has one free electron per atom.)

___a) 4.91 x 10-5m/s
___b) 5.95 x 10-5m/s
___c) 7.2 x 10-5m/s
___d) 8.73 x 10-5m/s
___e) 1.06 x 10-4m/s

3. A 0.5 Farad capacitor charged with 1.3 Coulombs. What is the force between the plates if they are 0.7 mm apart?

___a) 1826 N.
___b) 2099 N.
___c) 2414 N.
___d) 2776 N.
___e) 3193 N.

4. Two 9.4 ohm resistors are connected in parallel. This combination is then connected in series to a 2.4 ohm resistor. What is the net resistance?

___a) 5.4 ohms.
___b) 6.2 ohms.
___c) 7.1 ohms.
___d) 8.2 ohms.
___e) 9.4 ohms.

5. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the x component of the electric field at (x,y) =( 5a, 4a) is βkQ/a2, where β equals

___a) 1.76 x 10-3 unit
___b) 2.13 x 10-3 unit
___c) 2.59 x 10-3 unit
___d) 3.13 x 10-3 unit
___e) 3.79 x 10-3 unit

6. How fast is a 2672 eV electron moving?

___a) 6.1 x 106 m/s.
___b) 9.1 x 106 m/s.
___c) 1.4 x 107 m/s.
___d) 2 x 107 m/s.
___e) 3.1 x 107 m/s.

7. A 195 Watt DC motor draws 0.49 amps of current. What is effective resistance?

___a) 8.12 x 102 Ω
___b) 9.84 x 102 Ω
___c) 1.19 x 103 Ω
___d) 1.44 x 103 Ω
___e) 1.75 x 103 Ω

8. A proton is accellerated (at rest) from a plate held at 39.7 volts to a plate at zero volts. What is the final speed?

___a) 3.9 x 104 m/s.
___b) 5.8 x 104 m/s.
___c) 8.7 x 104 m/s.
___d) 1.3 x 105 m/s.
___e) 2 x 105 m/s.

9. What angle does the electric field at the origin make with the x-axis if a 2.8 nC charge is placed at x = -8 m, and a 1.5 nC charge is placed at y = -8.7 m?

___a) 2.44 x 101degrees
___b) 2.81 x 101degrees
___c) 3.25 x 101degrees
___d) 3.75 x 101degrees
___e) 4.33 x 101degrees

10. A 1.4 Farad capacitor charged with 2.3 Coulombs. What is the energy stored in the capacitor if the plates are 0.6 mm apart?

___a) 1.08 J.
___b) 1.24 J.
___c) 1.43 J.
___d) 1.64 J.
___e) 1.89 J.

#### Key to TrigPhysT2_151021-v1s1

1. An ideal 7.5 volt battery is connected to a 0.084 ohm resistor. To measure the current an ammeter with a resistance of 14${\displaystyle m\Omega }$ is used. What current does the ammeter actually read?

-a) 43.8 A.
-b) 50.3 A.
-c) 57.9 A.
-d) 66.5 A.
+e) 76.5 A.

2. The diameter of a copper wire is 9.2 mm, and it carries a current of 64 amps. What is the drift velocity if copper has a density of 8.8E3 kg/m3 and an atomic mass of 63.54 g/mol? (1 mol = 6.02E23 atoms, and copper has one free electron per atom.)

-a) 4.91 x 10-5m/s
-b) 5.95 x 10-5m/s
+c) 7.2 x 10-5m/s
-d) 8.73 x 10-5m/s
-e) 1.06 x 10-4m/s

3. A 0.5 Farad capacitor charged with 1.3 Coulombs. What is the force between the plates if they are 0.7 mm apart?

-a) 1826 N.
-b) 2099 N.
+c) 2414 N.
-d) 2776 N.
-e) 3193 N.

4. Two 9.4 ohm resistors are connected in parallel. This combination is then connected in series to a 2.4 ohm resistor. What is the net resistance?

-a) 5.4 ohms.
-b) 6.2 ohms.
+c) 7.1 ohms.
-d) 8.2 ohms.
-e) 9.4 ohms.

5. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the x component of the electric field at (x,y) =( 5a, 4a) is βkQ/a2, where β equals

-a) 1.76 x 10-3 unit
-b) 2.13 x 10-3 unit
-c) 2.59 x 10-3 unit
+d) 3.13 x 10-3 unit
-e) 3.79 x 10-3 unit

6. How fast is a 2672 eV electron moving?

-a) 6.1 x 106 m/s.
-b) 9.1 x 106 m/s.
-c) 1.4 x 107 m/s.
-d) 2 x 107 m/s.
+e) 3.1 x 107 m/s.

7. A 195 Watt DC motor draws 0.49 amps of current. What is effective resistance?

+a) 8.12 x 102 Ω
-b) 9.84 x 102 Ω
-c) 1.19 x 103 Ω
-d) 1.44 x 103 Ω
-e) 1.75 x 103 Ω

8. A proton is accellerated (at rest) from a plate held at 39.7 volts to a plate at zero volts. What is the final speed?

-a) 3.9 x 104 m/s.
-b) 5.8 x 104 m/s.
+c) 8.7 x 104 m/s.
-d) 1.3 x 105 m/s.
-e) 2 x 105 m/s.

9. What angle does the electric field at the origin make with the x-axis if a 2.8 nC charge is placed at x = -8 m, and a 1.5 nC charge is placed at y = -8.7 m?

+a) 2.44 x 101degrees
-b) 2.81 x 101degrees
-c) 3.25 x 101degrees
-d) 3.75 x 101degrees
-e) 4.33 x 101degrees

10. A 1.4 Farad capacitor charged with 2.3 Coulombs. What is the energy stored in the capacitor if the plates are 0.6 mm apart?

-a) 1.08 J.
-b) 1.24 J.
-c) 1.43 J.
-d) 1.64 J.
+e) 1.89 J.

### TrigPhysT2_151021-v2s1

1. A 1.2 Farad capacitor charged with 1.6 Coulombs. What is the energy stored in the capacitor if the plates are 0.4 mm apart?

___a) 0.81 J.
___b) 0.93 J.
___c) 1.07 J.
___d) 1.23 J.
___e) 1.41 J.

2. An ideal 7.4 volt battery is connected to a 0.074 ohm resistor. To measure the current an ammeter with a resistance of 12${\displaystyle m\Omega }$ is used. What current does the ammeter actually read?

___a) 49.2 A.
___b) 56.6 A.
___c) 65.1 A.
___d) 74.8 A.
___e) 86 A.

3. Two 7.4 ohm resistors are connected in parallel. This combination is then connected in series to a 2.8 ohm resistor. What is the net resistance?

___a) 5.7 ohms.
___b) 6.5 ohms.
___c) 7.5 ohms.
___d) 8.6 ohms.
___e) 9.9 ohms.

4. A proton is accellerated (at rest) from a plate held at 729.8 volts to a plate at zero volts. What is the final speed?

___a) 1.7 x 105 m/s.
___b) 2.5 x 105 m/s.
___c) 3.7 x 105 m/s.
___d) 5.6 x 105 m/s.
___e) 8.4 x 105 m/s.

5. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the x component of the electric field at (x,y) =( 4a, 6a) is βkQ/a2, where β equals

___a) 1.52 x 10-4 unit
___b) 1.85 x 10-4 unit
___c) 2.24 x 10-4 unit
___d) 2.71 x 10-4 unit
___e) 3.28 x 10-4 unit

6. The diameter of a copper wire is 1.9 mm, and it carries a current of 33 amps. What is the drift velocity if copper has a density of 8.8E3 kg/m3 and an atomic mass of 63.54 g/mol? (1 mol = 6.02E23 atoms, and copper has one free electron per atom.)

___a) 5.93 x 10-4m/s
___b) 7.19 x 10-4m/s
___c) 8.71 x 10-4m/s
___d) 1.06 x 10-3m/s
___e) 1.28 x 10-3m/s

7. A 146 Watt DC motor draws 0.23 amps of current. What is effective resistance?

___a) 2.28 x 103 Ω
___b) 2.76 x 103 Ω
___c) 3.34 x 103 Ω
___d) 4.05 x 103 Ω
___e) 4.91 x 103 Ω

8. A 0.5 Farad capacitor charged with 1.6 Coulombs. What is the force between the plates if they are 0.7 mm apart?

___a) 3180 N.
___b) 3657 N.
___c) 4206 N.
___d) 4837 N.
___e) 5562 N.

9. How fast is a 2493 eV electron moving?

___a) 1.3 x 107 m/s.
___b) 2 x 107 m/s.
___c) 3 x 107 m/s.
___d) 4.4 x 107 m/s.
___e) 6.7 x 107 m/s.

10. What angle does the electric field at the origin make with the x-axis if a 1.4 nC charge is placed at x = -5.5 m, and a 2.8 nC charge is placed at y = -6.8 m?

___a) 3.95 x 101degrees
___b) 4.56 x 101degrees
___c) 5.26 x 101degrees
___d) 6.08 x 101degrees
___e) 7.02 x 101degrees

#### Key to TrigPhysT2_151021-v2s1

1. A 1.2 Farad capacitor charged with 1.6 Coulombs. What is the energy stored in the capacitor if the plates are 0.4 mm apart?

-a) 0.81 J.
-b) 0.93 J.
+c) 1.07 J.
-d) 1.23 J.
-e) 1.41 J.

2. An ideal 7.4 volt battery is connected to a 0.074 ohm resistor. To measure the current an ammeter with a resistance of 12${\displaystyle m\Omega }$ is used. What current does the ammeter actually read?

-a) 49.2 A.
-b) 56.6 A.
-c) 65.1 A.
-d) 74.8 A.
+e) 86 A.

3. Two 7.4 ohm resistors are connected in parallel. This combination is then connected in series to a 2.8 ohm resistor. What is the net resistance?

-a) 5.7 ohms.
+b) 6.5 ohms.
-c) 7.5 ohms.
-d) 8.6 ohms.
-e) 9.9 ohms.

4. A proton is accellerated (at rest) from a plate held at 729.8 volts to a plate at zero volts. What is the final speed?

-a) 1.7 x 105 m/s.
-b) 2.5 x 105 m/s.
+c) 3.7 x 105 m/s.
-d) 5.6 x 105 m/s.
-e) 8.4 x 105 m/s.

5. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the x component of the electric field at (x,y) =( 4a, 6a) is βkQ/a2, where β equals

-a) 1.52 x 10-4 unit
-b) 1.85 x 10-4 unit
+c) 2.24 x 10-4 unit
-d) 2.71 x 10-4 unit
-e) 3.28 x 10-4 unit

6. The diameter of a copper wire is 1.9 mm, and it carries a current of 33 amps. What is the drift velocity if copper has a density of 8.8E3 kg/m3 and an atomic mass of 63.54 g/mol? (1 mol = 6.02E23 atoms, and copper has one free electron per atom.)

-a) 5.93 x 10-4m/s
-b) 7.19 x 10-4m/s
+c) 8.71 x 10-4m/s
-d) 1.06 x 10-3m/s
-e) 1.28 x 10-3m/s

7. A 146 Watt DC motor draws 0.23 amps of current. What is effective resistance?

-a) 2.28 x 103 Ω
+b) 2.76 x 103 Ω
-c) 3.34 x 103 Ω
-d) 4.05 x 103 Ω
-e) 4.91 x 103 Ω

8. A 0.5 Farad capacitor charged with 1.6 Coulombs. What is the force between the plates if they are 0.7 mm apart?

-a) 3180 N.
+b) 3657 N.
-c) 4206 N.
-d) 4837 N.
-e) 5562 N.

9. How fast is a 2493 eV electron moving?

-a) 1.3 x 107 m/s.
-b) 2 x 107 m/s.
+c) 3 x 107 m/s.
-d) 4.4 x 107 m/s.
-e) 6.7 x 107 m/s.

10. What angle does the electric field at the origin make with the x-axis if a 1.4 nC charge is placed at x = -5.5 m, and a 2.8 nC charge is placed at y = -6.8 m?

-a) 3.95 x 101degrees
-b) 4.56 x 101degrees
+c) 5.26 x 101degrees
-d) 6.08 x 101degrees
-e) 7.02 x 101degrees

### TrigPhysT2_151021-v1s2

1. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the y component of the electric field at (x,y) =( 1.1a, 1.2a) is βkQ/a2, where β equals

___a) 1.61 x 10-1 unit
___b) 1.95 x 10-1 unit
___c) 2.36 x 10-1 unit
___d) 2.86 x 10-1 unit
___e) 3.47 x 10-1 unit

2. A battery has an emf of 5.6 volts, and an internal resistance of 450 ${\displaystyle k\Omega }$. It is connected to a 2.7 ${\displaystyle M\Omega }$ resistor. What power is developed in the 2.7 ${\displaystyle M\Omega }$ resistor?

___a) 4.88 ${\displaystyle \mu }$W.
___b) 5.61 ${\displaystyle \mu }$W.
___c) 6.45 ${\displaystyle \mu }$W.
___d) 7.42 ${\displaystyle \mu }$W.
___e) 8.53 ${\displaystyle \mu }$W.

3. A power supply delivers 110 watts of power to a 299 ohm resistor. What was the applied voltage?

___a) 8.42 x 101 volts
___b) 1.02 x 102 volts
___c) 1.24 x 102 volts
___d) 1.5 x 102 volts
___e) 1.81 x 102 volts

4. An ideal 9.2 V voltage source is connected to two resistors in parallel. One is 1.1${\displaystyle k\Omega }$, and the other is 2.4 ${\displaystyle k\Omega }$. What is the current through the larger resistor?

___a) 2.29 mA.
___b) 2.63 mA.
___c) 3.02 mA.
___d) 3.48 mA.
___e) 4 mA.

5. A 0.5 Farad capacitor charged with 1.6 Coulombs. What is the force between the plates if they are 0.7 mm apart?

___a) 3180 N.
___b) 3657 N.
___c) 4206 N.
___d) 4837 N.
___e) 5562 N.

6. A 4 volt battery moves 19 Coulombs of charge in 1.3 hours. What is the power?

___a) 1.62 x 10-2 W
___b) 1.97 x 10-2 W
___c) 2.38 x 10-2 W
___d) 2.89 x 10-2 W
___e) 3.5 x 10-2 W

7. What is the magnitude of the electric field at the origin if a 1.8 nC charge is placed at x = 5.2 m, and a 3.1 nC charge is placed at y = 7.6 m?

___a) 7.69 x 10-1N/C
___b) 8.88 x 10-1N/C
___c) 1.03 x 100N/C
___d) 1.18 x 100N/C
___e) 1.37 x 100N/C

8. A proton is accellerated (at rest) from a plate held at 4.7 volts to a plate at zero volts. What is the final speed?

___a) 5.9 x 103 m/s.
___b) 8.9 x 103 m/s.
___c) 1.3 x 104 m/s.
___d) 2 x 104 m/s.
___e) 3 x 104 m/s.

9. A 1.4 Farad capacitor charged with 1.1 Coulombs. What is the energy stored in the capacitor if the plates are 0.6 mm apart?

___a) 0.38 J.
___b) 0.43 J.
___c) 0.5 J.
___d) 0.57 J.
___e) 0.66 J.

10. What voltage is required to stop a proton moving at a speed of 8.1 x 104 m/s?

___a) 3.4 x 101 volts
___b) 5.1 x 101 volts
___c) 7.7 x 101 volts
___d) 1.2 x 102 volts
___e) 1.7 x 102 volts

#### Key to TrigPhysT2_151021-v1s2

1. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the y component of the electric field at (x,y) =( 1.1a, 1.2a) is βkQ/a2, where β equals

-a) 1.61 x 10-1 unit
-b) 1.95 x 10-1 unit
-c) 2.36 x 10-1 unit
-d) 2.86 x 10-1 unit
+e) 3.47 x 10-1 unit

2. A battery has an emf of 5.6 volts, and an internal resistance of 450 ${\displaystyle k\Omega }$. It is connected to a 2.7 ${\displaystyle M\Omega }$ resistor. What power is developed in the 2.7 ${\displaystyle M\Omega }$ resistor?

-a) 4.88 ${\displaystyle \mu }$W.
-b) 5.61 ${\displaystyle \mu }$W.
-c) 6.45 ${\displaystyle \mu }$W.
-d) 7.42 ${\displaystyle \mu }$W.
+e) 8.53 ${\displaystyle \mu }$W.

3. A power supply delivers 110 watts of power to a 299 ohm resistor. What was the applied voltage?

-a) 8.42 x 101 volts
-b) 1.02 x 102 volts
-c) 1.24 x 102 volts
-d) 1.5 x 102 volts
+e) 1.81 x 102 volts

4. An ideal 9.2 V voltage source is connected to two resistors in parallel. One is 1.1${\displaystyle k\Omega }$, and the other is 2.4 ${\displaystyle k\Omega }$. What is the current through the larger resistor?

-a) 2.29 mA.
+b) 2.63 mA.
-c) 3.02 mA.
-d) 3.48 mA.
-e) 4 mA.

5. A 0.5 Farad capacitor charged with 1.6 Coulombs. What is the force between the plates if they are 0.7 mm apart?

-a) 3180 N.
+b) 3657 N.
-c) 4206 N.
-d) 4837 N.
-e) 5562 N.

6. A 4 volt battery moves 19 Coulombs of charge in 1.3 hours. What is the power?

+a) 1.62 x 10-2 W
-b) 1.97 x 10-2 W
-c) 2.38 x 10-2 W
-d) 2.89 x 10-2 W
-e) 3.5 x 10-2 W

7. What is the magnitude of the electric field at the origin if a 1.8 nC charge is placed at x = 5.2 m, and a 3.1 nC charge is placed at y = 7.6 m?

+a) 7.69 x 10-1N/C
-b) 8.88 x 10-1N/C
-c) 1.03 x 100N/C
-d) 1.18 x 100N/C
-e) 1.37 x 100N/C

8. A proton is accellerated (at rest) from a plate held at 4.7 volts to a plate at zero volts. What is the final speed?

-a) 5.9 x 103 m/s.
-b) 8.9 x 103 m/s.
-c) 1.3 x 104 m/s.
-d) 2 x 104 m/s.
+e) 3 x 104 m/s.

9. A 1.4 Farad capacitor charged with 1.1 Coulombs. What is the energy stored in the capacitor if the plates are 0.6 mm apart?

-a) 0.38 J.
+b) 0.43 J.
-c) 0.5 J.
-d) 0.57 J.
-e) 0.66 J.

10. What voltage is required to stop a proton moving at a speed of 8.1 x 104 m/s?

+a) 3.4 x 101 volts
-b) 5.1 x 101 volts
-c) 7.7 x 101 volts
-d) 1.2 x 102 volts
-e) 1.7 x 102 volts

### TrigPhysT2_151021-v2s2

1. An ideal 8.9 V voltage source is connected to two resistors in parallel. One is 2.1${\displaystyle k\Omega }$, and the other is 4.4 ${\displaystyle k\Omega }$. What is the current through the larger resistor?

___a) 1.37 mA.
___b) 1.57 mA.
___c) 1.81 mA.
___d) 2.08 mA.
___e) 2.39 mA.

2. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the y component of the electric field at (x,y) =( 1.1a, 1.2a) is βkQ/a2, where β equals

___a) 2.86 x 10-1 unit
___b) 3.47 x 10-1 unit
___c) 4.2 x 10-1 unit
___d) 5.09 x 10-1 unit
___e) 6.17 x 10-1 unit

3. What is the magnitude of the electric field at the origin if a 1.8 nC charge is placed at x = 5.2 m, and a 3.1 nC charge is placed at y = 7.6 m?

___a) 7.69 x 10-1N/C
___b) 8.88 x 10-1N/C
___c) 1.03 x 100N/C
___d) 1.18 x 100N/C
___e) 1.37 x 100N/C

4. A battery has an emf of 5.6 volts, and an internal resistance of 450 ${\displaystyle k\Omega }$. It is connected to a 2.7 ${\displaystyle M\Omega }$ resistor. What power is developed in the 2.7 ${\displaystyle M\Omega }$ resistor?

___a) 4.88 ${\displaystyle \mu }$W.
___b) 5.61 ${\displaystyle \mu }$W.
___c) 6.45 ${\displaystyle \mu }$W.
___d) 7.42 ${\displaystyle \mu }$W.
___e) 8.53 ${\displaystyle \mu }$W.

5. What voltage is required to stop a proton moving at a speed of 7.6 x 106 m/s?

___a) 3 x 105 volts
___b) 4.5 x 105 volts
___c) 6.8 x 105 volts
___d) 1 x 106 volts
___e) 1.5 x 106 volts

6. A 3.9 volt battery moves 90 Coulombs of charge in 2.2 hours. What is the power?

___a) 4.43 x 10-2 W
___b) 5.37 x 10-2 W
___c) 6.51 x 10-2 W
___d) 7.88 x 10-2 W
___e) 9.55 x 10-2 W

7. A proton is accellerated (at rest) from a plate held at 39.7 volts to a plate at zero volts. What is the final speed?

___a) 3.9 x 104 m/s.
___b) 5.8 x 104 m/s.
___c) 8.7 x 104 m/s.
___d) 1.3 x 105 m/s.
___e) 2 x 105 m/s.

8. A power supply delivers 187 watts of power to a 287 ohm resistor. What was the applied voltage?

___a) 2.32 x 102 volts
___b) 2.81 x 102 volts
___c) 3.4 x 102 volts
___d) 4.12 x 102 volts
___e) 4.99 x 102 volts

9. A 0.5 Farad capacitor charged with 1.3 Coulombs. What is the force between the plates if they are 0.7 mm apart?

___a) 1826 N.
___b) 2099 N.
___c) 2414 N.
___d) 2776 N.
___e) 3193 N.

10. A 0.8 Farad capacitor charged with 1.7 Coulombs. What is the energy stored in the capacitor if the plates are 0.5 mm apart?

___a) 1.81 J.
___b) 2.08 J.
___c) 2.39 J.
___d) 2.75 J.
___e) 3.16 J.

#### Key to TrigPhysT2_151021-v2s2

1. An ideal 8.9 V voltage source is connected to two resistors in parallel. One is 2.1${\displaystyle k\Omega }$, and the other is 4.4 ${\displaystyle k\Omega }$. What is the current through the larger resistor?

+a) 1.37 mA.
-b) 1.57 mA.
-c) 1.81 mA.
-d) 2.08 mA.
-e) 2.39 mA.

2. A dipole at the origin consists of charge Q placed at x = 0.5a, and charge of -Q placed at x = -0.5a. The absolute value of the y component of the electric field at (x,y) =( 1.1a, 1.2a) is βkQ/a2, where β equals

-a) 2.86 x 10-1 unit
+b) 3.47 x 10-1 unit
-c) 4.2 x 10-1 unit
-d) 5.09 x 10-1 unit
-e) 6.17 x 10-1 unit

3. What is the magnitude of the electric field at the origin if a 1.8 nC charge is placed at x = 5.2 m, and a 3.1 nC charge is placed at y = 7.6 m?

+a) 7.69 x 10-1N/C
-b) 8.88 x 10-1N/C
-c) 1.03 x 100N/C
-d) 1.18 x 100N/C
-e) 1.37 x 100N/C

4. A battery has an emf of 5.6 volts, and an internal resistance of 450 ${\displaystyle k\Omega }$. It is connected to a 2.7 ${\displaystyle M\Omega }$ resistor. What power is developed in the 2.7 ${\displaystyle M\Omega }$ resistor?

-a) 4.88 ${\displaystyle \mu }$W.
-b) 5.61 ${\displaystyle \mu }$W.
-c) 6.45 ${\displaystyle \mu }$W.
-d) 7.42 ${\displaystyle \mu }$W.
+e) 8.53 ${\displaystyle \mu }$W.

5. What voltage is required to stop a proton moving at a speed of 7.6 x 106 m/s?

+a) 3 x 105 volts
-b) 4.5 x 105 volts
-c) 6.8 x 105 volts
-d) 1 x 106 volts
-e) 1.5 x 106 volts

6. A 3.9 volt battery moves 90 Coulombs of charge in 2.2 hours. What is the power?

+a) 4.43 x 10-2 W
-b) 5.37 x 10-2 W
-c) 6.51 x 10-2 W
-d) 7.88 x 10-2 W
-e) 9.55 x 10-2 W

7. A proton is accellerated (at rest) from a plate held at 39.7 volts to a plate at zero volts. What is the final speed?

-a) 3.9 x 104 m/s.
-b) 5.8 x 104 m/s.
+c) 8.7 x 104 m/s.
-d) 1.3 x 105 m/s.
-e) 2 x 105 m/s.

8. A power supply delivers 187 watts of power to a 287 ohm resistor. What was the applied voltage?

+a) 2.32 x 102 volts
-b) 2.81 x 102 volts
-c) 3.4 x 102 volts
-d) 4.12 x 102 volts
-e) 4.99 x 102 volts

9. A 0.5 Farad capacitor charged with 1.3 Coulombs. What is the force between the plates if they are 0.7 mm apart?

-a) 1826 N.
-b) 2099 N.
+c) 2414 N.
-d) 2776 N.
-e) 3193 N.

10. A 0.8 Farad capacitor charged with 1.7 Coulombs. What is the energy stored in the capacitor if the plates are 0.5 mm apart?

+a) 1.81 J.
-b) 2.08 J.
-c) 2.39 J.
-d) 2.75 J.
-e) 3.16 J.

### TrigPhysT2_151021-v1s3

1. What voltage is required accelerate an electron at rest to a speed of 5.6 x 104 m/s?

___a) 5.9 x 10-3 volts
___b) 8.9 x 10-3 volts
___c) 1.3 x 10-2 volts
___d) 2 x 10-2 volts
___e) 3 x 10-2 volts

2. A 1.4 Farad capacitor is charged with 1.1 Coulombs. What is the value of the electric field if the plates are 0.6 mm apart?

___a) 0.86 kV/m.
___b) 0.99 kV/m.
___c) 1.14 kV/m.
___d) 1.31 kV/m.
___e) 1.51 kV/m.

3. A 7 ohm resistor is connected in series to a pair of 3.4 ohm resistors that are in parallel. What is the net resistance?

___a) 6.6 ohms.
___b) 7.6 ohms.
___c) 8.7 ohms.
___d) 10 ohms.
___e) 11.5 ohms.

4. A 5.8 volt battery moves 95 Coulombs of charge in 0.3 hours. What is the power?

___a) 4.21 x 10-1 W
___b) 5.1 x 10-1 W
___c) 6.18 x 10-1 W
___d) 7.49 x 10-1 W
___e) 9.07 x 10-1 W

5. What angle does the electric field at the origin make with the x-axis if a 2.8 nC charge is placed at x = -9.8 m, and a 2.8 nC charge is placed at y = -5.8 m?

___a) 7.07 x 101degrees
___b) 8.16 x 101degrees
___c) 9.43 x 101degrees
___d) 1.09 x 102degrees
___e) 1.26 x 102degrees

6. A proton is accellerated (at rest) from a plate held at 767.8 volts to a plate at zero volts. What is the final speed?

___a) 1.1 x 105 m/s.
___b) 1.7 x 105 m/s.
___c) 2.6 x 105 m/s.
___d) 3.8 x 105 m/s.
___e) 5.8 x 105 m/s.

7. A 1.4 Farad capacitor charged with 1.1 Coulombs. What is the force between the plates if they are 0.6 mm apart?

___a) 412 N.
___b) 474 N.
___c) 545 N.
___d) 626 N.
___e) 720 N.

8. An ideal 9.9 V voltage source is connected to two resistors in parallel. One is 0.9${\displaystyle k\Omega }$, and the other is 1.8 ${\displaystyle k\Omega }$. What is the current through the larger resistor?

___a) 3.67 mA.
___b) 4.22 mA.
___c) 4.85 mA.
___d) 5.58 mA.
___e) 6.41 mA.

9. What is the magnitude of the electric field at the origin if a 1.9 nC charge is placed at x = 9.7 m, and a 3.1 nC charge is placed at y = 5.5 m?

___a) 5.28 x 10-1N/C
___b) 6.1 x 10-1N/C
___c) 7.04 x 10-1N/C
___d) 8.13 x 10-1N/C
___e) 9.39 x 10-1N/C

10. A 171 Watt DC motor draws 0.47 amps of current. What is effective resistance?

___a) 7.74 x 102 Ω
___b) 9.38 x 102 Ω
___c) 1.14 x 103 Ω
___d) 1.38 x 103 Ω
___e) 1.67 x 103 Ω

#### Key to TrigPhysT2_151021-v1s3

1. What voltage is required accelerate an electron at rest to a speed of 5.6 x 104 m/s?

-a) 5.9 x 10-3 volts
+b) 8.9 x 10-3 volts
-c) 1.3 x 10-2 volts
-d) 2 x 10-2 volts
-e) 3 x 10-2 volts

2. A 1.4 Farad capacitor is charged with 1.1 Coulombs. What is the value of the electric field if the plates are 0.6 mm apart?

-a) 0.86 kV/m.
-b) 0.99 kV/m.
-c) 1.14 kV/m.
+d) 1.31 kV/m.
-e) 1.51 kV/m.

3. A 7 ohm resistor is connected in series to a pair of 3.4 ohm resistors that are in parallel. What is the net resistance?

-a) 6.6 ohms.
-b) 7.6 ohms.
+c) 8.7 ohms.
-d) 10 ohms.
-e) 11.5 ohms.

4. A 5.8 volt battery moves 95 Coulombs of charge in 0.3 hours. What is the power?

-a) 4.21 x 10-1 W
+b) 5.1 x 10-1 W
-c) 6.18 x 10-1 W
-d) 7.49 x 10-1 W
-e) 9.07 x 10-1 W

5. What angle does the electric field at the origin make with the x-axis if a 2.8 nC charge is placed at x = -9.8 m, and a 2.8 nC charge is placed at y = -5.8 m?

+a) 7.07 x 101degrees
-b) 8.16 x 101degrees
-c) 9.43 x 101degrees
-d) 1.09 x 102degrees
-e) 1.26 x 102degrees

6. A proton is accellerated (at rest) from a plate held at 767.8 volts to a plate at zero volts. What is the final speed?

-a) 1.1 x 105 m/s.
-b) 1.7 x 105 m/s.
-c) 2.6 x 105 m/s.
+d) 3.8 x 105 m/s.
-e) 5.8 x 105 m/s.

7. A 1.4 Farad capacitor charged with 1.1 Coulombs. What is the force between the plates if they are 0.6 mm apart?

-a) 412 N.
-b) 474 N.
-c) 545 N.
-d) 626 N.
+e) 720 N.

8. An ideal 9.9 V voltage source is connected to two resistors in parallel. One is 0.9${\displaystyle k\Omega }$, and the other is 1.8 ${\displaystyle k\Omega }$. What is the current through the larger resistor?

+a) 3.67 mA.
-b) 4.22 mA.
-c) 4.85 mA.
-d) 5.58 mA.
-e) 6.41 mA.

9. What is the magnitude of the electric field at the origin if a 1.9 nC charge is placed at x = 9.7 m, and a 3.1 nC charge is placed at y = 5.5 m?

-a) 5.28 x 10-1N/C
-b) 6.1 x 10-1N/C
-c) 7.04 x 10-1N/C
-d) 8.13 x 10-1N/C
+e) 9.39 x 10-1N/C

10. A 171 Watt DC motor draws 0.47 amps of current. What is effective resistance?

+a) 7.74 x 102 Ω
-b) 9.38 x 102 Ω
-c) 1.14 x 103 Ω
-d) 1.38 x 103 Ω
-e) 1.67 x 103 Ω

### TrigPhysT2_151021-v2s3

1. What is the magnitude of the electric field at the origin if a 1.9 nC charge is placed at x = 9.7 m, and a 3.1 nC charge is placed at y = 5.5 m?

___a) 5.28 x 10-1N/C
___b) 6.1 x 10-1N/C
___c) 7.04 x 10-1N/C
___d) 8.13 x 10-1N/C
___e) 9.39 x 10-1N/C

2. An ideal 5.2 V voltage source is connected to two resistors in parallel. One is 1.2${\displaystyle k\Omega }$, and the other is 3.6 ${\displaystyle k\Omega }$. What is the current through the larger resistor?

___a) 0.94 mA.
___b) 1.08 mA.
___c) 1.25 mA.
___d) 1.43 mA.
___e) 1.65 mA.

3. A 1.3 Farad capacitor is charged with 1.9 Coulombs. What is the value of the electric field if the plates are 0.3 mm apart?

___a) 3.2 kV/m.
___b) 3.68 kV/m.
___c) 4.24 kV/m.
___d) 4.87 kV/m.
___e) 5.6 kV/m.

4. A 104 Watt DC motor draws 0.13 amps of current. What is effective resistance?

___a) 3.46 x 103 Ω
___b) 4.19 x 103 Ω
___c) 5.08 x 103 Ω
___d) 6.15 x 103 Ω
___e) 7.46 x 103 Ω

5. What angle does the electric field at the origin make with the x-axis if a 1.2 nC charge is placed at x = -6.7 m, and a 1.7 nC charge is placed at y = -6.1 m?

___a) 4.47 x 101degrees
___b) 5.17 x 101degrees
___c) 5.97 x 101degrees
___d) 6.89 x 101degrees
___e) 7.96 x 101degrees

6. What voltage is required accelerate an electron at rest to a speed of 5.5 x 105 m/s?

___a) 2.5 x 10-1 volts
___b) 3.8 x 10-1 volts
___c) 5.7 x 10-1 volts
___d) 8.6 x 10-1 volts
___e) 1.3 x 100 volts

7. A 5.1 volt battery moves 43 Coulombs of charge in 1.5 hours. What is the power?

___a) 4.06 x 10-2 W
___b) 4.92 x 10-2 W
___c) 5.96 x 10-2 W
___d) 7.22 x 10-2 W
___e) 8.75 x 10-2 W

8. A 0.5 Farad capacitor charged with 1.3 Coulombs. What is the force between the plates if they are 0.7 mm apart?

___a) 1826 N.
___b) 2099 N.
___c) 2414 N.
___d) 2776 N.
___e) 3193 N.

9. A 6.3 ohm resistor is connected in series to a pair of 3.4 ohm resistors that are in parallel. What is the net resistance?

___a) 5.3 ohms.
___b) 6 ohms.
___c) 7 ohms.
___d) 8 ohms.
___e) 9.2 ohms.

10. A proton is accellerated (at rest) from a plate held at 775.8 volts to a plate at zero volts. What is the final speed?

___a) 7.6 x 104 m/s.
___b) 1.1 x 105 m/s.
___c) 1.7 x 105 m/s.
___d) 2.6 x 105 m/s.
___e) 3.9 x 105 m/s.

#### Key to TrigPhysT2_151021-v2s3

1. What is the magnitude of the electric field at the origin if a 1.9 nC charge is placed at x = 9.7 m, and a 3.1 nC charge is placed at y = 5.5 m?

-a) 5.28 x 10-1N/C
-b) 6.1 x 10-1N/C
-c) 7.04 x 10-1N/C
-d) 8.13 x 10-1N/C
+e) 9.39 x 10-1N/C

2. An ideal 5.2 V voltage source is connected to two resistors in parallel. One is 1.2${\displaystyle k\Omega }$, and the other is 3.6 ${\displaystyle k\Omega }$. What is the current through the larger resistor?

-a) 0.94 mA.
+b) 1.08 mA.
-c) 1.25 mA.
-d) 1.43 mA.
-e) 1.65 mA.

3. A 1.3 Farad capacitor is charged with 1.9 Coulombs. What is the value of the electric field if the plates are 0.3 mm apart?

-a) 3.2 kV/m.
-b) 3.68 kV/m.
-c) 4.24 kV/m.
+d) 4.87 kV/m.
-e) 5.6 kV/m.

4. A 104 Watt DC motor draws 0.13 amps of current. What is effective resistance?

-a) 3.46 x 103 Ω
-b) 4.19 x 103 Ω
-c) 5.08 x 103 Ω
+d) 6.15 x 103 Ω
-e) 7.46 x 103 Ω

5. What angle does the electric field at the origin make with the x-axis if a 1.2 nC charge is placed at x = -6.7 m, and a 1.7 nC charge is placed at y = -6.1 m?

-a) 4.47 x 101degrees
-b) 5.17 x 101degrees
+c) 5.97 x 101degrees
-d) 6.89 x 101degrees
-e) 7.96 x 101degrees

6. What voltage is required accelerate an electron at rest to a speed of 5.5 x 105 m/s?

-a) 2.5 x 10-1 volts
-b) 3.8 x 10-1 volts
-c) 5.7 x 10-1 volts
+d) 8.6 x 10-1 volts
-e) 1.3 x 100 volts

7. A 5.1 volt battery moves 43 Coulombs of charge in 1.5 hours. What is the power?

+a) 4.06 x 10-2 W
-b) 4.92 x 10-2 W
-c) 5.96 x 10-2 W
-d) 7.22 x 10-2 W
-e) 8.75 x 10-2 W

8. A 0.5 Farad capacitor charged with 1.3 Coulombs. What is the force between the plates if they are 0.7 mm apart?

-a) 1826 N.
-b) 2099 N.
+c) 2414 N.
-d) 2776 N.
-e) 3193 N.

9. A 6.3 ohm resistor is connected in series to a pair of 3.4 ohm resistors that are in parallel. What is the net resistance?

-a) 5.3 ohms.
-b) 6 ohms.
-c) 7 ohms.
+d) 8 ohms.
-e) 9.2 ohms.

10. A proton is accellerated (at rest) from a plate held at 775.8 volts to a plate at zero volts. What is the final speed?

-a) 7.6 x 104 m/s.
-b) 1.1 x 105 m/s.
-c) 1.7 x 105 m/s.
-d) 2.6 x 105 m/s.
+e) 3.9 x 105 m/s.