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Electric Circuits

Electric Circuits
The efficiency in case of maximum power transfer theorem is

 50 % - 100 %.
 50 %.
 less than 50 %.
 100 %.

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Electric Circuits
A 100 μF capacitor supplied from 3 V source with a frequency of 50 Hz. The capacitive reactance is

 31.84 Ω.
 15.92 Ω.
 7.96 Ω.
 63.68 Ω.

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Electric Circuits
Number of branches of a graph should be --------- number of branches of a network

 less than
 less than equals to
 greater than
 equals to

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Electric Circuits
Total power consumed in the circuit below is 10 W. Find X.

 None of these.
 3 A.
 1 A.
  2 A.

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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.
 75 V.
 125 V.
 0 V.

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Electric Circuits
The energy stored by a capacitor is given by

 1/2 QV.
 1/2 CV2.
 Q2 / 2C.
 all of them.

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MORE MCQ ON Electric Circuits

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