Question

A box and a capacitor C are in series across an AC source of $w=2rad{s}^{-1}$. The power factor of the box is $\frac{1}{\sqrt{2}}$ and that of the circuit is 1. Find the impedance of the box.

• A. $\frac{1}{C}$
• B. $\frac{2}{C}$
• C. $\frac{\sqrt{2}}{C}$
• D. $\frac{1}{\sqrt{2}C}$

Answer 1

The correct option is D $\frac{1}{\sqrt{2}C}$