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Inductors

Inductors
An inductance of 0.08 μH is larger than

0.000008 H
0.00008 mH
0.0000008 H
0.000000008 H

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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

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

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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

6 V
0 V
12 V
4 V

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Inductors
The following coils are in parallel: 75 H, 40 H, 25 H, and 15 H. The total inductance is approximately

6.9 μH
14 μH
2.2 μH
155 μH

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

2.5 mV
160 mV
16 mV
1.6 mV

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Inductors
Two inductors, L1 and L2, are in parallel. L1 has a value of 25 H and L2 a value of 50 H. The parallel combination is in series with L3, a 20 H coil. The entire combination is across an ac source of 60 Vrms at 300 kHz. The total rms current is

87 mA
337 mA
87 A
870 mA

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