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5 bytes added ,  16:55, 14 October 2021
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The purpose of the relay is to automate the closing / opening of the electrical circuit when an electrical signal is applied.
 
The purpose of the relay is to automate the closing / opening of the electrical circuit when an electrical signal is applied.
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'''Relays are great in these use cases:'''
 
'''Relays are great in these use cases:'''

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