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Electric Circuits

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

 400 Ω.
 200 Ω.
 4 kΩ.
 1 Ω.

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Electric Circuits
In above question, if circuit efficiency is 90 %. What will be output power ?

  37.3 kW.
  30 kW.
  35.6 kW.
  40 kW.

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Electric Circuits
A 50 μF capacitor is charged to retain 10 MJ of energy by a constant charging current of 1 A. Determine the voltages across the capacitor?

 60 V.
 50 V.
 30 V.
 20 V.

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Electric Circuits
What is Va in the below circuit?

 (6R + 10) / 3.
 (6R - 10) / 3.
 (3R + 10) / 3.
 (4R + 10) / 3.

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Electric Circuits
Which battery is used in aeroplanes?

 Edission cell.
 Dry cell battery.
 None of them.
 Lead acid battery.

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Electric Circuits
The breakdown voltage for paper capacitor is usually

 20 to 60 volts.
 more than 10000 volts.
 2000 to 3000 volts.
 200 to 1600 volts.

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MORE MCQ ON Electric Circuits

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