What is an electric circuit. Draw a well labeled diagram of an electric circuit.

The conducting path consisting source, load, switch connected by the conducting wire through which current can flow is called an electric circuit. Diagram of it is given below: 

Electric circuit, path for transmitting electric current. An electric circuit includes a device that gives energy to the charged particles constituting the current, such as a battery or a generator; devices that use current, such as lamps, electric motors, or computers; and the connecting wires or transmission lines. circuit diagram (also known as an electrical diagram, elementary diagram, or electronic schematic) is a simplified conventional graphical representation of an electrical circuit. ... Arrangement of the components interconnections on the diagram does not correspond to their physical locations in the finished device.