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2. A 0.800 mm diameter copper wire makes up a 108 turns, 8.30 cm diameter coil....

2. A 0.800 mm diameter copper wire makes up a 108 turns, 8.30 cm diameter coil. There is a magnetic field parallel to the axis of the coil. If the induced current in the coil is 5.00 A, what is the rate of change of the magnetic field?


A. 7.30×10-6 T/s
B. 880. T/s
C. 8.15 T/s
D. 0.0785 T/s

3. A 11.0 mH inductor makes the current drop from 151 mA to 62.0 mA in only 6.00 μs. What is the potential difference across the inductor?


A. 0.000979 V
B. 163 V
C. -114 V
D. -277 V

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