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Electric Circuits

Electric Circuits
In the network shown, what is the current I in the direction shown?

 4 A.
 5 / 6 A.
 1 / 3 A.
 0 A.

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Electric Circuits
Find the current through 5 Ohm resistor from A to B.

 1A.
 -1A.
 2A.
 -2A.

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Electric Circuits
What is apparent power in AC operation?

 Product of voltage and current at full load.
 Product of voltage and current.
 Product of rms voltage and rms current.
 Product of voltage and current at no load.

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Electric Circuits
In a series resonant circuit impedance is

 zero.
 minimum.
 maximum.
 none of these.

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Electric Circuits
A wire of resistance R has it length and cross - section both doubled. Its resistance will become

 4R.
 2R.
 R.
 0.5R.

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Electric Circuits
The frequency of EMF generated by a generator depends upon its

 nature of supply.
 both speed and number of poles.
 speed.
 number of poles.

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MORE MCQ ON Electric Circuits

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