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Electric Circuits

Electric Circuits
Internal resistance of ideal current source is

 100 ohms
 zero
 finite
 infinite

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Electric Circuits
Which resistor will be physically larger in size?

 10 Ω, 50 W.
 100 Ω, 10 W.
 1 k Ω, 1 W.
 1 M Ω, 1/2 W.

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Electric Circuits
A motor having a power factor of 0.8 absorbs in active power of 1200 W the reactive power drawn from the supply is _________ VA.

 250
 900
 400
 130

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Electric Circuits
Which of the following may be the value of resistivity of copper at absolute zero in ohm-metre?

 3.12.
 0.020.
 1.56.
 6.24.

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Electric Circuits
A current of 1 mA flows through a 1M ohm, 2 W carbon resistor. The power dissipated as heat in the resistor will be

 0.5 W.
None of these
 1 W.
 2 W.

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Electric Circuits
The current flowing between electrodes inside a lead acid battery is

 electron current.
 proton current.
 ionization current.
 polarization current.

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MORE MCQ ON Electric Circuits

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