 Check out my YouTube video on simple made DC motor
Exactly 20 turns of laminated wiring to make the rotor. The pole ends are etched at 180 degrees to provide the short circuit for alternating commutation and reverse current flow. Using a permanent magnet and power supply from 6Vdc battery, see how magnetic field reversal affects the direction. Note that brushless DC motors do not use commutation and effectively arrest any sparks/ozone generation. This video was made by Dennis Kenworthy for WWDD Your comment will be posted after it is approved.
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