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. Relays work like some electrical products since they receive an electrical signal and send the signal to other equipment by turning the switch on […]View more at https://www.circuitbasics.com/what-is-a-relay/.
Credit- Circuit Basics. Published by Department of EEE, ADBU: tinyurl.com/eee-adbu
