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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
A capacitor having a mica dielectric εR = 6, a plate area of a 10 inches2 and a separation 0.01 inch. Find the value of C

 1.349 F.
 1.349 nF.
 0 F.
 1.349 μF.

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Electric Circuits
Sulphation in a lead acid battery occurs due to

 fast charging.
 heavy charging.
 trickle charging.
 incomplete charging.

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Electric Circuits
Two sinusoidal quantities are said to be in phase quadrature, when their phase difference is

 45o.
 90o.
 30o.
 0o.

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Electric Circuits
The indication of the state of charge of a battery is best given by

 temperature of electrolyte.
 specific gravity of electrolyte.
 level of electrolyte.
 colour of electrolyte.

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Electric Circuits
The capacitive reactance of an electric circuit is 50 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance?

 100 Ohms.
 50 Ohms.
 25 Ohms.
 200 Ohms.

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MORE MCQ ON Electric Circuits

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