An alternating voltage $e = 150\sqrt{2} \sin 100t \text{ V}$ is applied to a capacitor of capacity $2 \mu F$. The root mean square value of current in the circuit is (in $mA$)

When an a.c. source is connected across a pure resistor, the correct phase relation between current $(i_R)$ and voltage $(e_R)$ is shown in which figure?

Average power associated with an ideal inductor and ideal capacitor over a complete cycle of $a.c.$ is respectively

The equation of current in a purely inductive circuit is $i = 5 \sin (49 \pi t - 30^{\circ})$. If the inductance is $30 \, mH$,then the equation for the voltage across the inductor will be. (Let $\pi = \frac{22}{7}$)

In $AC$ circuits,a choke coil is preferred over resistors because:

If wattless current flows in the $AC$ circuit, then the circuit is