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Electric Circuits

Electric Circuits
Unit of apparent power is

 KWhr.
 Watts.
 VA.
 VAR.

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Electric Circuits
If a function is shifted by 'T', then it is correctly represented as

 f (t) u (t-T).
 f (t-T) u (t).
 f (t-T) u (t-T).
 f (t) u (t).

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Electric Circuits
Which of the following quantities consists of SI unit as WATT ?

 Power
 Force
 Current
 Charge

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Electric Circuits
The terminals across the source are ___________ if a voltage source is to be neglected.

 short circuited.
 replaced by a series resistance.
 replaced by a shunt resistance.
 open circuited.

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Electric Circuits
A coil with negligible resistance has 50 V across it with 10 mA. The inductive reactance is

 1000 ohms.
 50 ohms.
 5000 ohms.
 500 ohms.

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

 1 Ω.
 200 Ω.
 4 kΩ.
 400 Ω.

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