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Inductors
A 320 H coil is in series with a 3.3 k resistor. How long does it take for current to build up to its full value?
0.48 μs
0.48 ms
0.48 s
48 s
0.48 μs
0.48 ms
0.48 s
48 s
Answer
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Related Question
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 or greater than 5 mH
9.9 mH
greater than 5 mH
less than 0.6 mH
9.9 mH or greater than 5 mH
9.9 mH
greater than 5 mH
less than 0.6 mH
Answer
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Inductors
Three 15 mH inductors are in series. The total inductance is
45 mH
5 mH
30 mH
15 mH
45 mH
5 mH
30 mH
15 mH
Answer
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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
18 mV
1.25 mV
1.8 mV
180 mV
18 mV
1.25 mV
1.8 mV
180 mV
Answer
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Inductors
An inductance of 0.43 mH is smaller than
43 μH
0.05 H
430 μH
0.00043 H
43 μH
0.05 H
430 μH
0.00043 H
Answer
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Inductors
The inductance of an iron-core coil decreases if
the length of the coil decreases
the iron core is removed
None of these
the number of turns is decreased
the length of the coil decreases
the iron core is removed
None of these
the number of turns is decreased
Answer
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