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 …
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.
Relay | Switching, Contacts, Circuitry | Britannica
Dec 20, 2025 · relay, in electricity, electromagnetic device for remote or automatic control of current in one (relay) circuit, using the variation in current in another (energizing) circuit. For …
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 …
What Is Relay And How Does It Work? - Regent Electronics
Feb 24, 2025 · What is a Relay? A relay is an electromechanical switching device that allows a low-power signal to control a high-power circuit. It is widely used in automation, electrical …
What is a Relay and How Does a Relay Work - pcbasic.com
Nov 24, 2025 · First of all, let's understand what a relay is. A relay is an electrical relay device, equivalent to a switch controlled by electrical signals. Relays can control high-power load …
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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