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Electric Circuits

Electric Circuits
For same voltage, the ratio resistance of 100 W lamp to resistance of 25 W lamp is

 4.
 16.
 1/4.
 1.

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Electric Circuits
Mica capacitor are characterised by all of following except

 low leakage reactance.
 low losses.
 stable operation.
 accurate value.

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Electric Circuits
Resistor stores the energy in the form of

 both A and B.
 electrical field.
 magnetic field.
None of these

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Electric Circuits
A conductor of length l meters moves at right angles to a uniform magnetic field of flux density B = 1.5 T. if the velocity of revolution of the conductor is 50 ms-1 then induced e.m.f. in the conductor is

 75 V.
 125 V.
 100 V.
 0 V.

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Electric Circuits
In which of the circuits power factor can be zero?

 capacitive.
 both ‘a’ and ‘b’
 inductive.
 resistive.

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Electric Circuits
1 F is theoretically equal to

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

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MORE MCQ ON Electric Circuits

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