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Inductors

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

5 mH
15 mH
45 mH
30 mH

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

partly shorted
good
shorted
open

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Inductors
The winding resistance of a coil can be increased by

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

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Inductors
When the current through an inductor is cut in half, the amount of energy stored in the electromagnetic field

quadruples
does not change
is quartered
doubles

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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
1.8 mV
18 mV
1.25 mV

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Inductors
When the current through an inductor decreases, the amount of energy stored in the electromagnetic field

increases
doubles
decreases
remains the same

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MORE MCQ ON Inductors

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