When a pure resistor is connected to an $AC$ source,the phase difference between the voltage and the current through the resistor is (in $^{\circ}$)

For high frequency,a capacitor offers

In an a.c. circuit with pure capacitance $C$ and a.c. source $E = E_0 \sin \omega t$, the equation of instantaneous current is given by

An $AC$ alternating $emf$ $E = 110 \sqrt{2} \sin(100t) \text{ V}$ is applied to a capacitor of $2 \mu F$. The $rms$ value of current in the circuit is $...... \text{ mA}$.

The same current is flowing in two alternating circuits. The first circuit contains only an inductor and the other contains only a capacitor. If the frequency of the alternating e.m.f. is increased,the values of current will

The inductive reactance of a coil is $X_{L}$. If the inductance of a coil is tripled and the frequency of the $A.C.$ supply is doubled,then the new inductive reactance will be