The average power dissipated in A.C. circuit is ( 2 ) watt. If a current flowing through a circuit is ( 2 ) ( A ) and impedance is ( 1 ), what is the power factor of the ( A C ) circuit?

Step-by-step solution

Power of ac circuit is given as P=V I Using Ohm's law, V=I RP=I² Z Given, P=2 W ; I=2 A ; Z=1 Substituting the values, we get 2 W=(2)² 1 = 2 4 = 1 2 =0.5 Therefore, power factor of ac circuit is 0.5 .