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Electric Circuits

Electric Circuits
When power factor angle is varying, the shape of the current locus is

 Semicircle
 Circle
 Straight line
 Triangle

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Electric Circuits
If the practical units of voltage and current wave each made 20 times as large as they are at present, what would be the consequent alternation in the size of the unit of capacitance?

 Nil.
 200 times.
 20 times.
 60 times.

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Electric Circuits
If a capacitors of capacitance 100 μF is connected across a voltage source of 10 V, then what will be the energy stored in that capacitor?

 5 × 10 - 2 Joule.
 10 × 10 - 3 Joule.
 5 × 10 - 3 Joule.
 10 × 10 6 Joule.

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Electric Circuits
1 F is theoretically equal to

 ratio of 1 V to 1 C
 1 ohm of resistance
 none of these
 ratio of 1 C to 1 V

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

 inductance.
 resistance.
 current.
 voltage.

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Electric Circuits
The mass of a proton is

 1.609 × 10 - 31 Kg.
 1.675 × 10 - 27 Kg.
 1.672 × 10 - 27 Kg.
 1.602 × 10 - 19 Kg.

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