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Inductors

Inductors
The voltage across a coil when di/dt = 20 mA/s and L = 8 H is

2.5 mV
1.6 mV
160 mV
16 mV

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Inductors
An inductor, a 1 k resistor, and a switch are connected in series across a 6 V battery. At the instant the switch is closed, the inductor voltage is

12 V
4 V
6 V
0 V

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Inductors
A 5 mH, a 4.3 mH, and a 0.6 mH inductor are connected in parallel. The total inductance is

9.9 mH or greater than 5 mH
less than 0.6 mH
greater than 5 mH
9.9 mH

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Inductors
The current through a 120 mH coil is changing at a rate of 150 mA/s. The voltage induced across the coil is

18 mV
1.25 mV
180 mV
1.8 mV

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Inductors
A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance is

55 mH
5.5 mH
less than 5.5 mH
less than 0.2 mH

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Inductors
A 320 H coil is in series with a 3.3 k resistor. How long does it take for current to build up to its full value?

0.48 ms
0.48 s
0.48 μs
48 s

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