Electromagnetic Relay - How a Relay Works - Electromagnetic Relay Switch

Electromagnetic Relay - How a Relay Works - Electromagnetic Relay Switch

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. The first relays were used in long-distance telegraph circuits as amplifiers: they repeated the signal coming in from one circuit and re-transmitted it on another circuit. Relays were used extensively in telephone exchanges and early computers to perform logical operations.

In this video I will go to show you, How do relay work and their construction?

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