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Electric Circuits

Electric Circuits
The fixed circular paths around the nucleus are called

 orbits.
 orbitals.
 mesons.
 nucleus.

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Electric Circuits
Power dissipation in ideal inductor is

 Maximum
 Minimum
 Zero
 A finite value

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Electric Circuits
A coil of negligible resistance has an induction of 100 mH. The current passing through the coil changes from 2 A to 4 A at a uniform rate in 0.1 sec the voltage across the coil during this time would be __________ V.

 8
 50
 2
 36

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Electric Circuits
The internal resistance of a practical voltage source is considered to be connected in

 parallel.
 series.
 either parallel or series.
None of these

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Electric Circuits
The active and reactive power in an AC circuit are 10W and 20VAR respectively. What is the power factor?

 0.577.
 0.5.
 0.866.
 1.

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Electric Circuits
A 10Ω resistor is stretched to increase its length double. Its resistance will now be

 40 Ω.
 5 Ω.
 20 Ω.
 10 Ω.

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MORE MCQ ON Electric Circuits

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