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Electric Circuits

Electric Circuits
For Norton’s equivalent circuit

 Isc = Voc Req.
 Isc = Voc / Req.
 Voc = Req /Isc.
 Voc = Isc / Req.

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Electric Circuits
A motor having a power factor of 0.8 absorbs in active power of 1200 W the reactive power drawn from the supply is _________ VA.

 250
 900
 130
 400

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Electric Circuits
Internal heating of a capacitor is usually attributed to

 dielectric charge.
 plate vibration.
 leakage resistance.
 electron movement.

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Electric Circuits
The time required for a pulse to change from 10 % to 90 % of its maximum value is known as

 rise time.
 decay time.
 run time.
 fall time.

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Electric Circuits
For symmetrical wave form average value of one full cycle is

 0
 2.22
 1.11
 1

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Electric Circuits
Kirchhoffs laws are valid for

  passive time invariant circuits.
  non-linear circuits only.
  both linear and non-linear circuits.
  linear circuit only.

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MORE MCQ ON Electric Circuits

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