A capacitor has a capacitive reactance when it is connected to an AC source of frequency
PHYSICS · Subjective · CBSE · Physics · Alternating Current · Alternating Current
Problem
A capacitor has a capacitive reactance XC when it is connected to an AC source of frequency f. The frequency of the source is now doubled.
(i) Write an expression for the new capacitive reactance in terms of XC.
(ii) Hence calculate the percentage change in the capacitive reactance.