electric circuit

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An electric circuit has to have a power source, wires for the electricity to flow through, and a device such as a lamp or a motor that uses the electric current. All of these parts must be connected so that the current continues to flow.

An electric circuit has to have a power source, wires for the electricity to flow through, and a device such as a lamp or a motor that uses the electric current. All of these parts must be connected so that the current continues to flow.

For small portable devices such as flashlights, a battery supplies the power. In a home or school most devices take power from the electricity supplied by the public power plant.

Wires made of metal and covered in plastic carry the electricity around a circuit. Metal is a good conductor of electricity, which means it can pass along the wire easily and well. The plastic around the wire insulates the electricity. The electricity is very powerful, and the plastic keeps it contained so that it does not harm people or other objects.