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Electric Circuits

Electric Circuits
Energy efficiency during electroplating is usually in the range

 80 to 85%.
 50 to 80%.
 90 to 99%.
 85 to 90%.

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Electric Circuits
The ratio of electric flux density to electric field intensity is called ......... of medium

 reluctance
 permeability
 capacitance
 permittivity

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Electric Circuits
The current in a chemical cell is a movement of

  positive and negative ions.
  negative ions only.
  positive ions only.
 positive hole charges.

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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

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

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Electric Circuits
A 20 μF capacitor and 200 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow dimmest?

 1000 Hz.
 100 Hz.
 10 Hz.
 1 Hz.

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Electric Circuits
What will be the resistance if 10 resistors of 10 ohm each are connected in series?

 100 Ω.
 1 Ω.
 10 Ω.
 0.1 Ω.

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MORE MCQ ON Electric Circuits

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