Physics equations/23Electromagnetic Induction, AC Circuits, and Electrical Technologies/Q:spaceTetherAndSimpleLoop
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Only two of these problems have been placed on Quizbank (first and last)
 Solutions to many wikiquiz questions (pdf)
 Solution at page 821 of Example 23.2 Calculating the Large Motional Emf of an Object in Orbit. (openstax College Physics)
 See also Wikipedia:Space tether missions
 This bad version of this quiz needs to be fixed so that more questions can be added here. Also a name change would help.
Study: http://en.wikiversity.org/wiki/Physics_equations/Sheet/All_chapters
a23InductionACcircuits_Q1_v1[edit  edit source]
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===2=== {<!a23InductionACcircuits_Q1_1>Two orbiting satellites are orbiting at a speed of 77 km/s perpendicular to a magnetic field of 56 μT. They are connected by a cable that is 31 km long. A voltmeter is attached between a satellite and one end of the cable. The voltmeter's internal impedance far exceeds the net resistance through the ionosphere that completes the circuit. What is the measured voltage?} a) 1.1 x 10<sup>5</sup> volts. +b) 1.34 x 10<sup>5</sup> volts. c) 1.62 x 10<sup>5</sup> volts. d) 1.96 x 10<sup>5</sup> volts. e) 2.38 x 10<sup>5</sup> volts. ===3=== {<!a23InductionACcircuits_Q1_1>Two orbiting satellites are orbiting at a speed of 66 km/s perpendicular to a magnetic field of 64 μT. They are connected by a cable that is 37 km long. A voltmeter is attached between a satellite and one end of the cable. The voltmeter's internal impedance far exceeds the net resistance through the ionosphere that completes the circuit. What is the measured voltage?} a) 1.29 x 10<sup>5</sup> volts. +b) 1.56 x 10<sup>5</sup> volts. c) 1.89 x 10<sup>5</sup> volts. d) 2.29 x 10<sup>5</sup> volts. e) 2.78 x 10<sup>5</sup> volts. ===4=== {<!a23InductionACcircuits_Q1_1>Two orbiting satellites are orbiting at a speed of 53 km/s perpendicular to a magnetic field of 58 μT. They are connected by a cable that is 29 km long. A voltmeter is attached between a satellite and one end of the cable. The voltmeter's internal impedance far exceeds the net resistance through the ionosphere that completes the circuit. What is the measured voltage?} a) 7.36 x 10<sup>4</sup> volts. +b) 8.91 x 10<sup>4</sup> volts. c) 1.08 x 10<sup>5</sup> volts. d) 1.31 x 10<sup>5</sup> volts. e) 1.59 x 10<sup>5</sup> volts. ===5=== {<!a23InductionACcircuits_Q1_1>Two orbiting satellites are orbiting at a speed of 83 km/s perpendicular to a magnetic field of 57 μT. They are connected by a cable that is 23 km long. A voltmeter is attached between a satellite and one end of the cable. The voltmeter's internal impedance far exceeds the net resistance through the ionosphere that completes the circuit. What is the measured voltage?} a) 8.98 x 10<sup>4</sup> volts. +b) 1.09 x 10<sup>5</sup> volts. c) 1.32 x 10<sup>5</sup> volts. d) 1.6 x 10<sup>5</sup> volts. e) 1.93 x 10<sup>5</sup> volts. ===6=== {<!a23InductionACcircuits_Q1_1>Two orbiting satellites are orbiting at a speed of 52 km/s perpendicular to a magnetic field of 41 μT. They are connected by a cable that is 33 km long. A voltmeter is attached between a satellite and one end of the cable. The voltmeter's internal impedance far exceeds the net resistance through the ionosphere that completes the circuit. What is the measured voltage?} a) 4.79 x 10<sup>4</sup> volts. b) 5.81 x 10<sup>4</sup> volts. +c) 7.04 x 10<sup>4</sup> volts. d) 8.52 x 10<sup>4</sup> volts. e) 1.03 x 10<sup>5</sup> volts. ===7=== {<!a23InductionACcircuits_Q1_1>Two orbiting satellites are orbiting at a speed of 58 km/s perpendicular to a magnetic field of 46 μT. They are connected by a cable that is 22 km long. A voltmeter is attached between a satellite and one end of the cable. The voltmeter's internal impedance far exceeds the net resistance through the ionosphere that completes the circuit. What is the measured voltage?} a) 2.72 x 10<sup>4</sup> volts. b) 3.3 x 10<sup>4</sup> volts. c) 4 x 10<sup>4</sup> volts. d) 4.84 x 10<sup>4</sup> volts. +e) 5.87 x 10<sup>4</sup> volts. ===8=== {<!a23InductionACcircuits_Q1_1>Two orbiting satellites are orbiting at a speed of 70 km/s perpendicular to a magnetic field of 46 μT. They are connected by a cable that is 30 km long. A voltmeter is attached between a satellite and one end of the cable. The voltmeter's internal impedance far exceeds the net resistance through the ionosphere that completes the circuit. What is the measured voltage?} a) 4.48 x 10<sup>4</sup> volts. b) 5.43 x 10<sup>4</sup> volts. c) 6.58 x 10<sup>4</sup> volts. d) 7.97 x 10<sup>4</sup> volts. +e) 9.66 x 10<sup>4</sup> volts. 
a23InductionACcircuits_Q1_v1[edit  edit source]
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===2=== {<!a23InductionACcircuits_Q1_4>An loop of wire with 26 turns has a radius of 0.26 meters, and is oriented with its axis parallel to a magetic field of 0.75 Tesla. What is the induced voltage if this field is reduced to 13% of its original value in 1.8 seconds?} +a) 2 x 10<sup>0</sup> volts b) 2.42 x 10<sup>0</sup> volts c) 2.94 x 10<sup>0</sup> volts d) 3.56 x 10<sup>0</sup> volts e) 4.31 x 10<sup>0</sup> volts ===3=== {<!a23InductionACcircuits_Q1_4>An loop of wire with 92 turns has a radius of 0.39 meters, and is oriented with its axis parallel to a magetic field of 0.97 Tesla. What is the induced voltage if this field is reduced to 16% of its original value in 1.4 seconds?} +a) 2.56 x 10<sup>1</sup> volts b) 3.1 x 10<sup>1</sup> volts c) 3.76 x 10<sup>1</sup> volts d) 4.55 x 10<sup>1</sup> volts e) 5.51 x 10<sup>1</sup> volts ===4=== {<!a23InductionACcircuits_Q1_4>An loop of wire with 80 turns has a radius of 0.52 meters, and is oriented with its axis parallel to a magetic field of 0.15 Tesla. What is the induced voltage if this field is reduced to 19% of its original value in 3.6 seconds?} a) 1.06 x 10<sup>0</sup> volts b) 1.29 x 10<sup>0</sup> volts c) 1.56 x 10<sup>0</sup> volts d) 1.89 x 10<sup>0</sup> volts +e) 2.29 x 10<sup>0</sup> volts ===5=== {<!a23InductionACcircuits_Q1_4>An loop of wire with 43 turns has a radius of 0.27 meters, and is oriented with its axis parallel to a magetic field of 0.68 Tesla. What is the induced voltage if this field is reduced to 36% of its original value in 3.8 seconds?} a) 6.34 x 10<sup>1</sup> volts b) 7.68 x 10<sup>1</sup> volts c) 9.31 x 10<sup>1</sup> volts +d) 1.13 x 10<sup>0</sup> volts e) 1.37 x 10<sup>0</sup> volts ===6=== {<!a23InductionACcircuits_Q1_4>An loop of wire with 54 turns has a radius of 0.8 meters, and is oriented with its axis parallel to a magetic field of 0.86 Tesla. What is the induced voltage if this field is reduced to 46% of its original value in 2.4 seconds?} a) 1.43 x 10<sup>1</sup> volts b) 1.73 x 10<sup>1</sup> volts +c) 2.1 x 10<sup>1</sup> volts d) 2.55 x 10<sup>1</sup> volts e) 3.08 x 10<sup>1</sup> volts ===7=== {<!a23InductionACcircuits_Q1_4>An loop of wire with 31 turns has a radius of 0.9 meters, and is oriented with its axis parallel to a magetic field of 0.83 Tesla. What is the induced voltage if this field is reduced to 35% of its original value in 1.7 seconds?} a) 2.07 x 10<sup>1</sup> volts +b) 2.5 x 10<sup>1</sup> volts c) 3.03 x 10<sup>1</sup> volts d) 3.67 x 10<sup>1</sup> volts e) 4.45 x 10<sup>1</sup> volts ===8=== {<!a23InductionACcircuits_Q1_4>An loop of wire with 33 turns has a radius of 0.55 meters, and is oriented with its axis parallel to a magetic field of 0.74 Tesla. What is the induced voltage if this field is reduced to 32% of its original value in 2.4 seconds?} a) 5.43 x 10<sup>0</sup> volts +b) 6.58 x 10<sup>0</sup> volts c) 7.97 x 10<sup>0</sup> volts d) 9.65 x 10<sup>0</sup> volts e) 1.17 x 10<sup>1</sup> volts 