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Electric Circuits

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

 Electrolytic.
 Ceramic.
 Mica.
 Paper.

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Electric Circuits
For closer tolerance which of the following capacitors is usually preferred?

 Paper capacitor.
 Ceramic disc capacitor.
 None of them.
 Mica capacitor.

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Electric Circuits
Internal resistance of ideal voltage source is

 infinite
 100 ohms
 finite
 zero

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Electric Circuits
Super position theorem is not applicable for

None of these
 voltage calculations.
 current calculations.
 power calculations.

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Electric Circuits
The capacitance of a conductor is varying from 2 microfarad to zero in 1 sec linearly if the voltage applied to it is 6 V the energy stored in 0.5 sec in the condenser is

 18 µ joules.
 20 µ joules.
  55.1 µ joules.
 10 µ joules.

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

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

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