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Electric Circuits

Electric Circuits
Unit of apparent power is

 VA.
 KWhr.
 VAR.
 Watts.

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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
 2 W.
 1 W.

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Electric Circuits
The value of current I flowing in the 1 Ω resistor in the circuit shown in the given figure will be

 10 A.
 5 A.
 6 A.
 0 A.

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Electric Circuits
Which of the following are typical resistance and power-dissipation values for a carbon-composition resistor?

 1000000 ohms, 1 W.
 10 ohm, 50 W.
 5000 ohms, 100W.
 10000 ohms, 10 W.

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Electric Circuits
The maximum power that can be transferred to the load resistor R from the voltage source in the figure is

 9/8 W.
 1 W.
 7.5 W.
 6/8W.

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Electric Circuits
Efficiency of electrical machines should be calculated by measuring

 losses and input.
 output and input.
 losses and output.
 losses.

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MORE MCQ ON Electric Circuits

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