AC Voltage Applied to a Capacitor

If a capacitor of $8\mathrm{ }\mathrm{\mu F}$ is connected to a $220\mathrm{ }\mathrm{V},\mathrm{ }100 \mathrm{H}\mathrm{z}$, AC source and the current passing through it is $65 \mathrm{m}\mathrm{A}$ then the rms voltage across it is

Draw the phasor diagram of a purely capacitive circuit.

In a purely capacitive circuit, the current phasor $I$ is $\frac{\mathrm{\pi }}{2}$ ahead of the voltage phasor $V$ as rotates clockwise.

Capacitor reactance is $\mathrm{Xc}$ in purely capacitive a.c circuit which is equal to 

Phaser $\overrightarrow{\mathrm{I}}$ makes with positive $\mathrm{x}-\mathrm{axis}$ ( if voltage phaser $\overrightarrow{\mathrm{E}}$ makes angle $\mathrm{\omega t}$ with positive $\mathrm{x}-\mathrm{axis}$ )

Phase difference between current and voltage in purely capacitive a.c circuit is 

The time constant of the circuit consisting capacitor $C$ and resistance $R$ is $RC$.

The phase difference between the alternating current and emf is $\frac{\pi }{2}$. Which of the following cannot be the constituent of the circuit ?

(a) $LC$

(b) $L$ alone

(c) $C$ alone

(d) $R,L$

As the frequency of an AC circuit increases, the current first increases and then decreases. What combination of circuit elements is most likely to comprise the circuit?

What is instantaneous power in purely capacitive circuit.

Instantaneous power is defined as the limiting value of the average power when time tends to zero.

Instantaneous power is defined as the limiting value of the average power when time tends to_____.

No power loss associated with pure capacitor in ac circuit.

The power consumed in a circuit element will be least when the phase difference in degree between the current and voltage is 

Why power in a circuit is zero in which current and voltage are $90°$ out of phase?

The circuit containing only capacitance is called

 When the supply frequency increases, what happens to the capacitive reactance in the circuit?

Which of the following represents variation of capacitive reactance $\left(X_{\mathrm{C}}\right)$ and frequency $\left(f\right)$ of the voltage source?

A capacitor has capacitance $C$ and reactance $X$. If capacitance and frequency becomes doubled, then reactance will be

Which of the following curves correctly represents the variation of capacitive reactance $X_C$ with frequency $f$?