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Electric Circuits

Electric Circuits
The capacity of a cell is measured in

  amperes.
  watts.
  ampere-hour.
  watt-hours.

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Electric Circuits
The equation for 25 cycles current sine wave having rms value of 30 amps, will be

 30sin50πt.
 42.4sin50πt.
 30sin25πt.
 42.4sin25πt.

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Electric Circuits
A balanced star connected load with impedance of 30j - 300 Ω is supplied from a 3 - phase, 4-wire, 173 V system, the voltages to neutral being 100j -900, 100j - 300 and 100j -1500 V. The current in neutral wire is

  8.85 A.
  zero.
  50 A.
  5 A.

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Electric Circuits
What are the points to be mentioned in specifying main switches?

  Voltage grade.
  Current rating.
  None of these.
  Both A and B.

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Electric Circuits
What is the real power in AC operation?

 Apperant power × cosφ.
 VIcosφ.
 None of these.
 Both option A and B.

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Electric Circuits
Which of following capacitor will have least value of breakdown voltage?

 Paper.
 Mica.
 Electrolytic.
 Ceramic.

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MORE MCQ ON Electric Circuits

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