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Electric Circuits

Electric Circuits
In foster 1 form 1st element is

 none.
 both.
 capacitor.
 inductor.

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Electric Circuits
To obtain high efficiency, network is designed with which of the following?

 High Q factor
 Unity Q factor
 Zero Q factor
 Low Q factor

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Electric Circuits
Three resistances of two ohms each are connected in star. In the equivalent delta representation each resistance will have a value of _______________ Ω.

 6.
 3.4.
 5.2.
 0.6.

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Electric Circuits
The switch S is the circuit shown in figure is ideal. If the switch is repeatedly closed for 1 ms and opened for 1 ms, the average value of i(t) is

  0.25 mA.
 1 mA.
 0.35 mA.
 0.5 mA.

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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.

 130
 400
 900
 250

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Electric Circuits
A branch of a network is said to be passive when it contains

 battery.
 voltmeter.
 voltage source.
 current source.

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