Home made polarity tester | polarity tester circuit for DC Circuit | Electrical Technician

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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Видео Home made polarity tester | polarity tester circuit for DC Circuit | Electrical Technician канала Electrical Technician