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Electric Circuits

Electric Circuits
In the circuit shown in the figure, the value of Vs is 0, when I = 4 A. The value of I, when Vs = 16 V, is

 10 A.
 6 A.
 12 A.
 8 A.

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Electric Circuits
The mass of a neutron of atom is

 1.675 × 10 - 27 Kg.
 1.609 × 10 - 31 Kg.
 1.602 × 10 - 19 Kg.
 1.672 × 10 - 26 Kg.

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Electric Circuits
A current of 4 A flows in an ac circuit when 100 V dc is applied to it whereas it takes 250 v ac to produce the same current the power factor of the circuit is

 0.85.
 10.
 0.4.
 1.

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Electric Circuits
Total instantaneous power supplied by a 3 - φ AC supply to a balanced RL load is

 pulsating with non zero average.
 zero.
 constant.
 pulsating with zero average.

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Electric Circuits
Electric flux is proportional to

 rate of change of current.
 potential difference between electrodes.
 rate of change of potential difference.
 resistivity of medium.

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Electric Circuits
The alternative names for active power is/are

 true power.
 average power.
All of these
 real power.

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MORE MCQ ON Electric Circuits

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