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Inductors

Inductors
An inductance of 0.08 μH is larger than

0.000008 H
0.000000008 H
0.0000008 H
0.00008 mH

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Inductors
The winding resistance of a coil can be increased by

changing the core material
using a thinner wire
increasing the number of turns or using thinner wire
increasing the number of turns

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Inductors
An ohmmeter is connected across an inductor and the pointer indicates zero ohms. The inductor is

open
good
shorted
partly shorted

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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
0 V
6 V

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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

180 mV
18 mV
1.25 mV
1.8 mV

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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
2.2 μH
155 μH
14 μH

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