Physics - EMI/AC Question with Solution | TestHub

Assertion is true. When a capacitor is connected to an a.c. circuit, ${\epsilon }_{rms}=i_{rms}\left(\frac{1}{C\omega }\right)$ where $\frac{1}{C\omega }$ is the impedance due to capacitative resistance. The power consumed in this circuit is zero because the phase difference $\varphi$ between $\mathrm{emf}$ and current in a pure capacitance a.c. circuit is $\frac{\pi }{2}$. Power factor $\cos \varphi =0$. It is only for d.c. that a current does not flow. Reason is false.