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Electric Circuits

Electric Circuits
A current of 1 mA flows through a 1M ohm, 2 W carbon resistor. The power dissipated as heat in the resistor will be

 0.5 W.
None of these
 2 W.
 1 W.

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

 Circle
 Triangle
 Semicircle
 Straight line

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Electric Circuits
A capacitor carries a charge of 0.1 C at 5 V. Its capacitance is

 0.5 F
 0.2 F
 0.05 F
 0.02 F

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Electric Circuits
Two resistances R1 and R2 give combined resistances 4.5 Ω and 1 Ω when they are connected in series and parallel respectively. What would be the values of these resistances?

  3 Ω and 6 Ω.
 3 Ω and 9 Ω.
 6 Ω and 9 Ω.
  1.5 Ω and 3 Ω.

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Electric Circuits
Current efficiency in electroplating is usually

  99 %.
  50 to 60 %.
  90 to 98 %.
  70 to 80 %.

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Electric Circuits
The capacity of a lead acid cell does not depends on its

 rate of charge.
 quantity of active material.
 rate of discharge.
 temperature.

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MORE MCQ ON Electric Circuits

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