HIGH SPEED neodymium motor homopolar

Magnetic Games
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you need to build a fast homopolar motor 1) cylindrical neodymium magnet (more powerful is better) 2) 1.2 V rechargeable battery (delivers more energy per unit of time than the 1.5V battery) 3) washer used as a guide 4) copper wire suitably shaped 钕高速单极电机