An Electric circuit is combination of various electric components.
In Electrical Engineering circuits are built by connecting different electrical components such as resistors, batteries, switches, and interconnecting wires. On paper and books, these circuits are represented by using different diagrams. Such diagrams are also known as a circuit or schematic diagrams.
A Schematic diagram uses simplified, standard symbols to symbolize different types of components. The circuit diagram given below displays a simple series circuit containing a battery, a switch, and resistance.