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Electric Circuits

Electric Circuits
To obtain a high value of capacitance, the permittivity of dielectric medium should be

 high
 low
 zero
 unity

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Electric Circuits
For balanced star load, if unbalanced line current are IR, IY, IB equal to - j10, - j10 and - j20 respectively, the neutral current will be equal to

  (-8.66 - j5) A.
  (-9.66 + j5) A.
  (8.66 - j5) A.
  (8.66 + j5) A.

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Electric Circuits
Which quantity consists of a unit 1KWh ?

 Energy
 Time
 Charge
 Power

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Electric Circuits
Power dissipation in ideal inductor is

 Maximum
 Zero
 Minimum
 A finite value

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Electric Circuits
Unit of apparent power is

 VAR.
 VA.
 Watts.
 KWhr.

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Electric Circuits
Purpose of using capacitor is / are

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

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MORE MCQ ON Electric Circuits

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