An alternating emf produces an rms current of in a circuit in which the current leads…

PHYSICS · Subjective · CBSE · Physics · Alternating Current · Alternating Current

Problem

An alternating emf

E = E_0 \sin \omega t

produces an rms current of

6\,\text{A}

in a circuit in which the current leads the emf by

90^{\circ}

. If the rms value of the emf is

110\,\text{V}

, determine (i) the average power supplied by the source and (ii) the power factor of the circuit.