In a capacitive circuit,the reactance of a capacitor at frequency $f$ is $X_{C}$. What will be its reactance at frequency $4f$?

An inductor,a resistor,and a capacitor are joined in series with an $AC$ source. As the frequency of the source is slightly increased from a very low value,the reactance of the

In an $AC$ circuit containing only a capacitor,how does the current relate to the potential difference?

In a circuit,the current lags behind the voltage by a phase difference of $\pi / 2$. The circuit will contain which of the following?

$A$ capacitor of capacitance $150.0\,\mu F$ is connected to an alternating source of $emf$ given by $E = 36 \sin(120 \pi t) \, V$. The maximum value of current in the circuit is approximately equal to $...... \, A$.

Capacitive reactance of a capacitor in an $AC$ circuit is $3 \ k\Omega$. If this capacitor is connected to a new $AC$ source of double frequency,the capacitive reactance will become: