Once electricity has been generated, it needs to be transported from the power station or generator to consumer homes. This is done using a system of pylons and cables called the National Grid.

Listen to the full series on BBC Sounds. Electrons are negatively charged particles and they transfer energy through wires as electricity. Charge close chargeProperty of matter that causes a force ...

and systems that conduct electrical charges and produce electricity. It also includes the study of electrical distribution systems that control the amount of energy received by an appliance, such as ...

Electrical charge sensors measure electrical charge in electrical components such as electrical relays and electrical sensors. An electrical relay is an electrical component that completes or ...