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How do we know which relay contact is actuated by which relay coil? How does this...

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Electrical Engineering

How do we know which relay contact is actuated by which relaycoil? How does this convention differ from that of standardelectrical/electronic schematic diagrams, where the relay coil isshown as an actual coil of wire

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3.9 Ratings (735 Votes)
A relay is a special type of switch turned on and off by an electromagnet When a current flows through the coil an electromagnetic field is set up The field attracts an iron armature whose other end pushes the contacts together    See Answer
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