If wattless current flows in the AC circuit, | vedclass

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(B) In an $AC$ circuit, the average power consumed is given by $P = V_{rms} I_{rms} \cos \phi$, where $\phi$ is the phase difference between voltage a

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Purely Inductive circuit

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(B) In an $AC$ circuit, the average power consumed is given by $P = V_{rms} I_{rms} \cos \phi$, where $\phi$ is the phase difference between voltage and current.A wattless current is a current that flows in a circuit without consuming any average power.For the power to be zero, the power factor $\cos \phi$ must be zero, which implies $\phi = \frac{\pi}{2}$ (or $90^{\circ}$).This condition occurs in a purely inductive circuit or a purely capacitive circuit, where the phase difference between voltage and current is exactly $\frac{\pi}{2}$.Among the given options, a purely inductive circuit satisfies this condition.

If wattless current flows in the $AC$ circuit, then the circuit is

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