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Electric Circuits

Electric Circuits
Flux in a magnetic circuit can be compared in an electric circuit to

 voltage.
 inductance.
 current.
 resistance.

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Electric Circuits
Which material has extremely large resistance?

None of these
 Conductor
 Insulator
 Semiconductor

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

All of these
 Vr/V
 P/S
 R/Z

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Electric Circuits
Average power taken by the pure capacitor is

 Minimum
 Any of the above
 Maximum
 Zero

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Electric Circuits
In a 3 - φ delta connection, two-wattmeter method is used to measure the power; if the two watt meters read 28.13 kW and 13.31 kW, the power factor of connection will be

 0.4.
 0.6.
 0.85.
 0.9.

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Electric Circuits
Current magnification will occur in which of the following case?

 Both
None of these
 Parallel resonance
 Series resonance

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MORE MCQ ON Electric Circuits

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