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Electric Circuits

Electric Circuits
Which resistor will be physically larger in size?

 10 Ω, 50 W.
 1 M Ω, 1/2 W.
 100 Ω, 10 W.
 1 k Ω, 1 W.

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Electric Circuits
Mica capacitor are characterised by all of following except

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

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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

 100 V.
 125 V.
 75 V.
 0 V.

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Electric Circuits
The electrical conductivity of metal is typically of the order of (in ohm - m)

 107.
 10 - 4.
 105.
 10 - 6.

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Electric Circuits
Three resistors of 4 ohm, 6 ohm and 8 ohm are in parallel. In which resistor, power dissipation will be maximum

 6 Ohm.
 equal in all resistors.
 8 Ohm.
 4 Ohm.

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Electric Circuits
200 resistors of 200 Ω each are connected in parallel. Their equivalent resistance will be

 1 Ω.
 200 Ω.
 400 Ω.
 4 kΩ.

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MORE MCQ ON Electric Circuits

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