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

An AC current is given by I = I₁ sin$$\omega$$t + I₂ cos$$\omega$$t. A hot wire ammeter will give a reading :

For the given circuit, comment on the type of transformer used.

An RC circuit as shown in the figure is driven by a AC source generating a square wave. The output wave pattern monitored by CRO would look close to :