BBC HomeExplore the BBC
This page has been archived and is no longer updated. Find out more about page archiving.

20 October 2014
pod's mission
pod's mission pod's mission

BBC Homepage
Pod's Home
Solids & Liquids

Contact Us

Ollo's Area Electricity annie button pod button ollo button teachers button
A switch can be used to make or break a circuit, to turn things on or off.

In real circuits, you should take care when the bits and pieces that make up a circuit (sometimes called components) are changed. If too much power passes through a component, it can be destroyed. When this happens we sometimes say that it has burnt out.

electrical wire

previous page
previous page

About the BBC | Help | Terms of Use | Privacy & Cookies Policy