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Electric Circuits

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

 Mica.
 Paper.
 Electrolytic.
 Ceramic.

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Electric Circuits
A current of 4 A flows in an ac circuit when 100 V dc is applied to it whereas it takes 250 v ac to produce the same current the power factor of the circuit is

 10.
 0.4.
 0.85.
 1.

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

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

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Electric Circuits
Total instantaneous power supplied by a 3 - φ AC supply to a balanced RL load is

 zero.
 constant.
 pulsating with zero average.
 pulsating with non zero average.

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

 0.2 F
 0.05 F
 0.5 F
 0.02 F

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Electric Circuits
200 resistors of 200 Ω each are connected in parallel. Their equivalent resistance will be

 4 kΩ.
 400 Ω.
 200 Ω.
 1 Ω.

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