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Electric Circuits

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

 P/S
All of these
 Vr/V
 R/Z

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Electric Circuits
The time required for a pulse to change from 10 % to 90 % of its maximum value is known as

 rise time.
 run time.
 decay time.
 fall time.

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Electric Circuits
For the resonance circuit ω0 = 105, Q = 50, R = 400 Ω the value of C is

 1000 pF.
 125 pF.
 250 pF.
 500 pF.

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Electric Circuits
Among the options which metal has the highest electrical conductivity?

 Aluminium.
 Copper.
 Steel.
 Stranded aluminium.

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Electric Circuits
Total instantaneous power supplied by a 3 - φ AC supply to a balanced RL load is

 constant.
 pulsating with non zero average.
 pulsating with zero average.
 zero.

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Electric Circuits
Active element of electrical circuit is

 voltage source.
 none of above.
 both of them.
 current source.

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MORE MCQ ON Electric Circuits

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