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

In the graphical representation of e.m.f. $e$ and current $i$ versus $\omega t$ for an a.c. circuit,both emf and current reach zero,minimum,and maximum values at the same time. The circuit element connected to the source will be

Explain why the reactance provided by a capacitor to an alternating current decreases with increasing frequency.

As per the given graph,choose the correct representation for curve $A$ and curve $B$. Where $X_{C} =$ reactance of a pure capacitive circuit connected to an $A.C.$ source,$X_{L} =$ reactance of a pure inductive circuit connected to an $A.C.$ source,$R =$ resistance of a pure resistive circuit connected to an $A.C.$ source,and $Z =$ impedance of the $LCR$ series circuit.

The average power dissipation in a pure capacitance in an $AC$ circuit is

An $AC$ source is connected to a capacitor $C$. Due to a decrease in its operating frequency: