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Inductors

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

160 mV
2.5 mV
16 mV
1.6 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

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

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

15 mH
30 mH
5 mH
45 mH

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Inductors
An inductance of 0.43 mH is smaller than

43 μH
0.05 H
0.00043 H
430 μH

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

good
partly shorted
shorted
open

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Inductors
An 18 V power supply is connected across a coil with a winding resistance of 180 . Current flow in the coil is

10 mA
100 mA
1 mA
1 A

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