The rules of the National Electrical Code are written for people who have a pre-existing knowledge of electricity. In order to make sense of the Code, you must first understand basic electrical ...

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, ...

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 ...