explanation and superb animated graphics to show exactly how our powerchair motors work.
If you use a powerchair this is a must. The motor he shows is a 2 Pole DC motor. A 4pole one simply has 2 extra magnets and 2 extra brushes. So draws double the current, and has double the torque. (almost).
A must watch unless you already understand.
youtu.be/CWulQ1ZSE3c