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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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Related Question
Inductors
An ohmmeter is connected across an inductor and the pointer indicates zero ohms. The inductor is
partly shorted
open
good
shorted
partly shorted
open
good
shorted
Answer
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Inductors
Five inductors are connected in series. The lowest value is 8 μH. If the value of each inductor is twice that of the preceding one, and if the inductors are connected in order of ascending values, the total inductance is
32 μH
248 μH
8 H
64 μH
32 μH
248 μH
8 H
64 μH
Answer
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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 A
1 mA
10 mA
100 mA
1 A
1 mA
Answer
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Inductors
A 5 mH, a 4.3 mH, and a 0.6 mH inductor are connected in parallel. The total inductance is
9.9 mH
greater than 5 mH
9.9 mH or greater than 5 mH
less than 0.6 mH
9.9 mH
greater than 5 mH
9.9 mH or greater than 5 mH
less than 0.6 mH
Answer
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Inductors
An inductance of 0.08 μH is larger than
0.00008 mH
0.000000008 H
0.000008 H
0.0000008 H
0.00008 mH
0.000000008 H
0.000008 H
0.0000008 H
Answer
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