Difference between Relay and Switch - Codrey Electronics
Why do we use a relay instead of a switch? - Quora
How Relays Work - Basic working principle electronics engineering electrician amp - YouTube
What is a Relay and How Do Relays Work? | MRO Electric
Simple #RelayCircuit is an electrically operated switch,Many relays use an electromagnet to mechanically operat… | Electricity, Automotive electrical, Car mechanic