An a.c. of frequency f is flowing in a circui | vedclass

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(C) In an ideal choke coil (pure inductor),the current lags behind the voltage by a phase angle of $\phi = 90^\circ$ or $\frac{\pi}{2} 	ext{ radians}

Vedclass · Accepted Answer

Zero

Vedclass · Answer

(C) In an ideal choke coil (pure inductor),the current lags behind the voltage by a phase angle of $\phi = 90^\circ$ or $\frac{\pi}{2} 	ext{ radians}$.The average power $P$ in an $a.c.$ circuit is given by the formula:$P = V_{rms} I_{rms} \cos \phi$Since the choke coil is ideal,its resistance is zero,making it a purely inductive circuit. For a purely inductive circuit,the power factor $\cos \phi = \cos 90^\circ = 0$.Substituting this into the power formula:$P = V_{rms} I_{rms} 	imes 0 = 0$.Therefore,the average power dissipated by an ideal choke coil is zero.

An $a.c.$ of frequency $f$ is flowing in a circuit containing only an ideal choke coil of inductance $L$. If $V_0$ and $i_0$ represent peak values of the voltage and the current respectively,the average power given by the source to the choke coil is equal to

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