Designers can make useful products that include electrical components close electrical componentA device in an electric circuit, such as a battery, switch or lamp.. They allow a product to have lights ...

For electricity to flow, everything needs to be connected in a big ring. It’s called a circuit. For example, the lights in most houses and flats are part of a circuit controlled by the consumer unit, ...

BBC Post Production in partnership with Siemens Business Services has transferred HD media between BBC sites for the first time without the need for dedicated HD circuits, writes Fergal Ringrose.