Relay - Explained and animated - how relay works

Описание к видео Relay - Explained and animated - how relay works

Relay - Explained and animated

A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a separate low-power signal, or where several circuits must be controlled by one signal

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