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, ...

The electrical power formula is introduced and students learn how to use Ohm’s Law. Power and Series Circuits: The electrical power formula is introduced and students learn how to use Ohm’s Law and ...

The difference between static discharge and continuous current is explained. Introduction to Electric Current: The difference between static discharge and continuous current is explained. Sources of ...

There’s a small, silent component hiding in almost every electronic device—from your phone and laptop to your TV and charger.