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What is Relay? | Working & Types Explained #digitechdynamo
🔌 A Relay is an electromagnetic switch used to control high voltage/current circuits with a low power signal. ⚡ Working Principle: Works on electromagnetism. When current flows through the coil, it creates a magnetic field. This pulls the armature, switching the contacts ON/OFF. 📌 Types of Relays: Electromechanical Relay (Coil ...
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