A circuit breaker is a safety switch that automatically "opens" (breaks ... Short circuits happen when electrical current bypasses the regular load and takes a shortcut back to the source.

Many smart switches and dimmers require the presence of a neutral wire in the electrical box inside the wall, in addition to the line (power from the circuit-breaker panel), load (power to the ...

Even if you aren’t an electronics person, you probably have a working knowledge of circuit breakers. When the lights go out, you find the circuit breaker and flip it back to the on position.