Q 12-07-017NEETJEE MainEasy
If the frequency of the ac supply is doubled, the reactance of a capacitor
Answer: (D) is halved
Concept. $X_C = \dfrac{1}{2\pi fC} \propto \dfrac{1}{f}$.
Step 1. Double $f$. $X_C$ halves.
Answer. Is halved (Option D).
Solution by Sreeraj P, M.Sc Physics