17.4 AC Circuits

17.4 AC Circuits

The basic circuit element in a DC circuit is a resistor $R$ which controls the current or voltage and the relation between them is given by Ohm's law ($V = IR$). But the basic circuit elements in AC circuit are resistor $R$, inductor $L$ and capacitor $C$. These elements control the current and voltage through the circuit. The AC circuits with these components are discussed below: