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Electric Circuits

Electric Circuits
Which of the following has no units?

 Moment of a magnet
 Permittivity
 Permeability
 Magnetic susceptibility

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Electric Circuits
In RLC parallel circuit circuit current through inductor is more than current through capacitor. Then what is the power factor of the circuit?

 unity
 lagging
 zero
 leading

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Electric Circuits
The capacitive reactance of a capacitor of (1 / 2μF) F at 103 Hz is

 10- 3 μF.
 10 6 μF.
 10- 6 μF.
 10 3 μF.

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Electric Circuits
What is the reactive power in AC operation?

 Real power × sinθ.
 Real power × cosθ.
 Apparent power × sinθ.
 Apparent power × cosθ.

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Electric Circuits
Purpose of using capacitor is / are

 to do phase split in AC 1 phase motor.
 increase p.f of inductive load circuit.
 effect DC filter in electronic circuit.
 all of these.

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Electric Circuits
Magnetic flux has the unit of

 Weber
 Ampere turn
 Newton
  Tesla

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MORE MCQ ON Electric Circuits

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