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Electric Circuits

Electric Circuits
The active and reactive power in an AC circuit are 10W and 20VAR respectively. What is the power factor?

 0.5.
 0.866.
 1.
 0.577.

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Electric Circuits
Which material has extremely large resistance?

 Insulator
None of these
 Semiconductor
 Conductor

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Electric Circuits
The breakdown voltage for paper capacitor is usually

 more than 10000 volts.
 200 to 1600 volts.
 20 to 60 volts.
 2000 to 3000 volts.

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Electric Circuits
In series R, L circuit power factor can be defined as

All of these
 R/Z
 P/S
 Vr/V

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Electric Circuits
In foster 1 form 1st element is

 capacitor.
 none.
 both.
 inductor.

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Electric Circuits
Given network is having N nodes and b branches, then number of individual loops are

 b - N - 1.
 N.
 b - N + 1.
 N - 1.

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