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Roller Homopolar Motor

Magnetic Games
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Another variant of the homopolar motor. This time I create the necessary short circuit to activate the motor with a copper wire or iron. Fun science experiment For this experiment i have used Duracell Rechargeable battery http://amzn.to/2mcLGHQ i use 2 neodymium magnet 20x3mm and 2 magnet 15x5mm with hole a rechargeable battery copper wire iron […]