Question

A capacitor of capacity C has reactance X. If capacitance and frequency become double then reactance will be

• A. 4X
• B. X/2
• C. X/4
• D. 2X.

Answer 1

Answer: (C)

$X=\frac{1}{C\omega }{X}^{\prime }=\frac{1}{4C\omega }\therefore X^{\prime }=\frac{X}{4}$