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Relay - Wikipedia
A relay is an electrically operated switch. It has a set of input terminals for one or more control signals, and a set of operating contact terminals. The switch may have any number of contacts in multiple …
What Is Relay? How Relay Works? - Electronics Hub
Sep 11, 2024 · Instead of mechanical operation, a relay deploys an electrical signal to drive an electromagnet, which in turn engages or breaks (connects or disconnects) another circuit.
How Electrical Relays Work - Circuit Basics
A relay is an electromagnetic switch that opens and closes circuits electromechanically or electronically. A relatively small electric current that can turn on or off a much larger electric current operates a relay.
How a Relay Works and How to Use It in Circuits
Mar 8, 2024 · Learn how a relay works and how you can use it to turn on/off high-power devices with tiny signals. Includes practical circuit examples.
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How Relays Work - HowStuffWorks
May 17, 2024 · Powered by electromagnets, a relay is simply a mechanical switch, and you'll find them all over a typical house or car. Find out what these simple components are doing in all your electrical …
Relay - Definition, Construction, Working, Diagram, Types, Advantages ...
Jan 21, 2025 · A relay is an electrically operated switch that allows one circuit to control another, often with different voltage or current levels. It is used to isolate and protect low-power circuits or to control …
relay - Wiktionary, the free dictionary
Dec 10, 2025 · relay (third-person singular simple present relays, present participle relaying, simple past and past participle relayed) (transitive) To pass on or transfer (information). [from 19th c.]