electrical relay

Noun
  1. Electrical device such that current flowing through it in one circuit can switch on and off a current in a second circuit (synset 104080072)
    is a type of: electrical device - a device that produces or is powered by electricity
    has: electromagnet - a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet
    is a part of: circuit, electric circuit, electrical circuit - an electrical device that provides a path for electrical current to flow
    same as: relay

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