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Electric Circuits

Electric Circuits
A 3Ω resistor having 2A current will dissipate the power of

 12 W.
 2 W.
 8 W.
 4 W.

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Electric Circuits
Condition for a balanced 3 - phase load is that, each phase has the same value of __________________.

 power factor.
 all of these.
 impedance.
 resistance.

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Electric Circuits
A 50 μF capacitor is charged to retain 10 MJ of energy by a constant charging current of 1 A. Determine the voltages across the capacitor?

 60 V.
 30 V.
 50 V.
 20 V.

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

 Semicircle
 Triangle
 Straight line
 Circle

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Electric Circuits
The basic circuit elements are

 Vs, Is.
None of these
 R, L and C.
 both A and B.

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Electric Circuits
A 230V, 50Hz voltage is applied to a coil having L = 5H and R = 2 Ohm in series with capacitance C. When the voltage across the coil is 400V, find the current in the circuit?

 0.1465 A.
 0.2547 A.
 0.1578 A.
 0.4583 A.

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MORE MCQ ON Electric Circuits

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