What will be the phase difference between vir | vedclass

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

Vedclass · Accepted Answer

$90$

Vedclass · Answer

(A) The average power consumed in an $AC$ circuit is given by $P = V_{rms} I_{rms} \cos \phi$,where $\phi$ is the phase difference between voltage and current.If the current is wattless,it means the average power consumed in the circuit is zero $(P = 0)$.Substituting $P = 0$ into the power formula: $0 = V_{rms} I_{rms} \cos \phi$.Since $V_{rms}$ and $I_{rms}$ are not zero,we must have $\cos \phi = 0$.This implies that $\phi = 90^o$ (or $\pi/2$ radians).Therefore,the phase difference between virtual voltage and virtual current is $90^o$.

What will be the phase difference between virtual voltage and virtual current,when the current in the circuit is wattless (in $^o$)?

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