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Inductors
An inductance of 0.43 mH is smaller than
0.00043 H
43 μH
430 μH
0.05 H
0.00043 H
43 μH
430 μH
0.05 H
Answer
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Related Question
Inductors
An inductor and a resistor are in series with a sine wave voltage source. The frequency is set so that the inductive reactance is equal to the resistance. If the frequency is increased, then
VL > VR
VL < VR
VL = VR
VR ≥ VL
VL > VR
VL < VR
VL = VR
VR ≥ VL
Answer
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Inductors
An ohmmeter is connected across an inductor and the pointer indicates zero ohms. The inductor is
partly shorted
shorted
open
good
partly shorted
shorted
open
good
Answer
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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
55 mH
less than 5.5 mH
5.5 mH
less than 0.2 mH
55 mH
less than 5.5 mH
5.5 mH
Answer
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Inductors
The inductance of an iron-core coil decreases if
the iron core is removed
None of these
the length of the coil decreases
the number of turns is decreased
the iron core is removed
None of these
the length of the coil decreases
the number of turns is decreased
Answer
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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
14 μH
155 μH
6.9 μH
2.2 μH
14 μH
155 μH
6.9 μH
2.2 μH
Answer
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