A.C. Circuit

A.C. Circuits are electric circuits through which an alternating current flows. Alternating current (AC) circuits are used in many applications, including power transmission, telecommunication, motors and generators, radio and television, etc.

The main components of AC circuits are resistors, capacitors, and inductors. These components have a common function; they restrict electric current in a circuit coil but in completely different ways.

In an A.C. circuit, the voltages and currents are marked by direction and magnitude which may or may not be in phase with each other. The phase difference depends on the different variables of the system like capacitance, inductance and resistance. The sinusoidal alternating values are current and voltage, which differ by cohering to the sine of angle θ.