Electrical symbols are a graphical representation (also called a pictogram) used in electrical drawings and electrical schematic diagrams. Designed to identify a specific component, these symbols are ...

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 ...

Electrical components, like motors close motorA device which spins when current flows through it. Motors are used in fans, food processors and many other devices. and lamps close lampA component which ...

Key learning points Electrical charges What are free electrons? Cell polarity Conventional current direction Electrons orbit the nucleus. An atom has a neutral charge, because it contains the same ...

Churning with voltage and resembling an explosion at the wire factory, the breaker panel exudes mystique. But it's just a big switch, filled with other smaller ­switches, which lead to the switches ...

We may receive a commission on purchases made from links. Anyone who's lived in a home or apartment has probably heard the terms "fuse box" or "circuit breaker" before. If you ever experienced a power ...