Home made polarity tester | polarity tester circuit for DC Circuit | Electrical Technician
Channel: Electrical Technician
Date: 2020-07-19

How to Make a Homemade Polarity Tester 
Namashkar dosto,
 is video mai aap polarity tester banana sikhenge, jiske madad se aap kisi bhi circuit Board, bike, ya car ki wiring me Plus ( + ) ya Minus ( - ) pole  ko khoj sakte hai 
isko aap polarity detector bhi bol sakte hai 

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 electrical technician