An electrical switch capable of opening and closing an electrical circuit in all operating conditions, including fault situations.
Synonym of trading curb
More specifically, a circuit breaker that automatically breaks overcurrent conditions; a type of overcurrent protective device.
Quarantine measures intended to prevent spread of pandemics, such as the coronavirus.
An electrical switch, in a generator or motor, that periodically reverses the direction of an electric current.
A binary map in a given group G, given by [g, h] = ghg⁻¹h⁻¹, where g and h are elements of G, which yields the group's identity if and only if the group operation commutes for g and h.
A binary map in a given ring R, given by [a, b] = ab − ba, where a and b are elements of R, which yields the ring's zero element if and only if the multiplication operation commutes for a and b.