Q. A constant voltage at different frequencies is applied across a capacitance $C$ as shown in the figure. Which of the following graphs correctly depicts the variation of current with frequency
A)
B)
C)
D)
Explanation
(b) For capacitive circuits $X_{C} = \frac{1}{\omega C}$
$\therefore i = \frac{V}{X_{C}} = V\omega C\ \Rightarrow i \propto \omega$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.