$A$ $0.7\,H$ inductor is connected across a $120\,V, 60\,Hz$ $AC$ source. The current in the inductor will be very nearly: (in $,A$)

The voltage across a pure inductor is represented by the following diagram. Which of the following diagrams will represent the current?

What happens to the inductive reactance and the current in a purely inductive circuit if the frequency is halved?

An alternating voltage $e = 200 \sqrt{2} \sin(100 t) \text{ V}$ is connected to a $1 \mu F$ capacitor through an $AC$ ammeter. The reading of the ammeter is: (in $\text{ mA}$)

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

Explain the representation of $AC$ current and voltage by rotating vectors.