SSC JE Electrical Engineering 2017 Set 4 Paper

For a prototype high pass filter, the series element is capacitor. A high pass filter passes signal of high frequency and attenuate signal of low frequency.for $\mathrm{f}=0,{\mathit{X}}_{\mathit{C}}=\frac{1}{2\mathit{\pi }\mathrm{fC}}=\mathit{\infty }$ , open circuit
${\mathit{V}}_{\mathrm{out}}=0$
$\mathrm{f}\to \mathit{\infty },{\mathit{X}}_{\mathit{C}}=\frac{1}{2\mathit{\pi }\mathrm{fC}}$
${\mathit{V}}_{\mathrm{out}}={\mathit{V}}_{\mathrm{in}}.$