A capacitor is connected to the terminals of a variable frequency oscillator.The peak voltage of the source in kept fixed while the frequency is increased.Which statement is true?
A) The rms current through the capacitor decreases.
B) The rms current through the capacitor increases.
C) The phase angle between the current and source voltage changes.
D) The current becomes zero when the frequency is large enough.

Question

Quizplus · Accepted Answer

The rms current through a capacitor is given by I = V * 2πfC, where V is the peak voltage, f is the frequency, and C is the capacitance. As the frequency increases, the rms current also increases.

A Capacitor Is Connected to the Terminals of a Variable