If we increase the frequency of an $a.c.$ supply,then inductive reactance

The average power dissipated in a pure inductor is

An $a.c.$ source of voltage $V$ and frequency $50\,Hz$ is connected to an inductor of $2\,H$ and negligible resistance. $A$ current of $r.m.s.$ value $I$ flows in the coil. When the frequency of the voltage is changed to $400\,Hz$ keeping the magnitude of $V$ the same,the current is now

$A$ $15.0 \; \mu F$ capacitor is connected to a $220 \; V, 50 \; Hz$ source. Find the capacitive reactance and the current ($rms$ and peak) in the circuit. If the frequency is doubled,what happens to the capacitive reactance and the current?

An $AC$ supply gives $30 \ V$ $rms$ which passes through a $10 \ \Omega$ resistance. The power dissipated in it is ...... $W$.

In a choke coil,the reactance $X_L$ and resistance $R$ are such that