question_answer

A coil has an inductance of 0.7 henry and is joined in series with a resistance of \[220\,\Omega \]. When the alternating emf of 220 V at 50 Hz is applied to it then the phase through which current lags behind the applied emf and the watt less component of current in the circuit will be respectively

A) \[30{}^\circ ,\text{ }1\text{ }A\]          

B)        \[45{}^\circ ,\text{ }0.5\text{ }A\]

C) \[60{}^\circ ,\text{ }1.5\text{ }A\]         

D) None of these