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Inductors

Inductors
An inductance of 0.43 mH is smaller than

0.00043 H
43 μH
430 μH
0.05 H

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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

0 V
4 V
12 V
6 V

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Inductors
The inductance of an iron-core coil decreases if

the iron core is removed
None of these
the number of turns is decreased
the length of the coil decreases

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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

1.25 mV
1.8 mV
180 mV
18 mV

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Inductors
An inductance of 0.08 μH is larger than

0.0000008 H
0.000008 H
0.000000008 H
0.00008 mH

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Inductors
Three 15 mH inductors are in series. The total inductance is

5 mH
30 mH
45 mH
15 mH

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