An ac circuit consists of a 220 mH inductor in series with a 25 pF capacitor and a sinusoidal ac generator with an rms voltage of 12 V. If the frequency of the generator is 55 kHz, what will the rms voltage across the capacitor be?
A) 5.4 V
B) 35 V
C) 6.6 V
D) 11.80 V

Question

Quizplus · Accepted Answer

The rms voltage across the capacitor can be found using the formula for capacitive reactance and the voltage divider rule. The capacitive reactance is much larger than the inductive reactance at this frequency, leading to a higher voltage across the capacitor.

An Ac Circuit Consists of a 220 MH Inductor in Series