Electric circuit

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A path or line along which an electrical current flows is known as an electrical circuit. It's possible that the route would be closed (joined at both ends), forming a circle. Electrical current can flow through a closed circuit. It may also be an open circuit, in which the electron flow is interrupted by a broken path. Electrical current cannot pass through an open circuit.

It is important to understand the basic components of a simple circuit as well as the symbols that correspond to them. Conductors, a switch, a load, and a power source make up a basic circuit. The following are the functions of each component:

Conductor:

Copper wires with no insulation are the most common kind. They provide the route for electricity to pass through. The current from the power source (cell) is connected to the load by one piece of wire. The load is connected to the power source by the other piece.

Switch:

The switch is simply a small gap in the conductor where you can close or open the circuit. When the switch is closed, the circuit is closed and electricity flows.

The Load:

The load is a small light bulb or buzzer that lights when the circuit is turned on. The load is also known as a resistor.

Cell:

The power source is a cell. (Note that more than one cell put together is known as a battery)

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Below is a basic set of symbols that you may find on circuit diagrams.