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Electric Circuits

Electric Circuits
The value of specific gravity of acid when a lead acid battery is fully charged is

 2.185.
 2.585.
 1.285.
 2.9585.

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Electric Circuits
Which of the following has positive temperature coefficient ?

  Paper.
  Gold.
  Germanium.
  Rubber.

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Electric Circuits
What is the SI unit of electric current ?

None of these
 Faraday.
 Ampere.
 Ohm.

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Electric Circuits
Electric flux is proportional to

 rate of change of current.
 resistivity of medium.
 rate of change of potential difference.
 potential difference between electrodes.

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Electric Circuits
The frequency of EMF generated by a generator depends upon its

 both speed and number of poles.
 nature of supply.
 number of poles.
 speed.

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Electric Circuits
What would be the power given by source V2?

 10 W.
 - 5 W.
 0 W.
 5 W.

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