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Electric Circuits

Electric Circuits
A 10 Ohm resistor has power rating of 1W. Find the maximum current rating.

 0.1 A.
 1 A.
 0.316 A.
 0.01 A.

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Electric Circuits
If emf in a given circuit is given by e = 100 sinω0t, then maximum value of voltage and frequency will be

 100 V, 50 Hz.
 100√2 V, 100 Hz.
 50√2 V, 100 Hz.
 100 V, 100 Hz.

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Electric Circuits
Instantaneous power in inductor is proportional to the

 product of the instantaneous current and rate of change of current.
 square of instantaneous current.
 square of the rate of change of current.
 temperature of the inductor.

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Electric Circuits
The unit of electric field intensity is

 N / C.
 N / Ampere.
 F/ m2.
 F / m.

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Electric Circuits
Whenever current is supplied by a source its terminal voltage

 decreases.
 increases.
 increases exponentially.
 remains constant.

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Electric Circuits
The capacitive reactance of a capacitor of (1 / 2μF) F at 103 Hz is

 10- 6 μF.
 10 6 μF.
 10- 3 μF.
 10 3 μF.

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