Question

For high frequency, capacitor offers

• A. High reactance
• B. Low reactance
• C. cannot be predicted
• D. infinite reactance

Answer 1

The correct option is B Low reactance

As the frequency of the current flowing through the capacitors increases in value because

$q=cv,X_c=\frac{1}{\omega c}$

$dq=c\frac{dv}{dt},=\frac{1}{2\pi fc}$

So, as the frequency of the current increases $X_c$ decreases.

$\therefore$ Low reactance.