Last month's column covered the behavior of electrical components connected in series and demonstrated that when a voltage is applied across a series circuit, the current through each component is the ...

Different models, such as water flowing in a central heating system, can be used to understand electrical circuits. Find out more with BBC Bitesize. For students between the ages of 11 and 14.

GFCI basics. Before we get into GFCI requirements, let's address two basic points. First, GFCIs do work on 2-wire circuits. A GFCI works by measuring the current on the ungrounded conductor and ...

See how the land and water are connected, and investigate electrical circuits.

Play dough circuits 1: getting started Create colourful electrical circuits with play dough and light-emitting diodes - even the littlies can get involved!