Most people understand, too, that the breaker will trip if you overload the circuit with too many things plugged in or with an accidental short circuit. But how does this common device actually work?

How does an electric circuit work? This electric buzzer game shows how an electrical circuit works. One end of a battery is attached to the metal wire. The other end is attached to the metal loop.

Nonlinear circuits work with noise by using stochastic resonance, a phenomenon that allows a small signal to combine with background noise to produce an output.