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Electric Circuits

Electric Circuits
Which of the following ABCD parameters is unit less?

 B and C.
 A and C.
 A and B.
 A and D.

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Electric Circuits
In a lead acid cell PbSO4 formed during

  discharging only.
  neither during charging nor discharging.
  charging only.
  both during charging as well as discharging.

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Electric Circuits
When power factor angle is constant, then shape of the current locus is

 circle.
 semi circle.
 triangle.
 straight line.

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Electric Circuits
A 100 μF capacitor supplied from 3 V source with a frequency of 50 Hz. The capacitive reactance is

 31.84 Ω.
 7.96 Ω.
 63.68 Ω.
 15.92 Ω.

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Electric Circuits
The instantaneous values of line current into a delta connected load in any two lines are + 2.5 amps and - 1.25 amps the current in the third line at the instant is ___________ A.

 2.5
 1
 - 1.25
 10

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Electric Circuits
A constant voltage source has

 high internal resistance.
 minimum efficiency.
 low internal resistance.
 minimum current capacity.

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MORE MCQ ON Electric Circuits

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