For a simple DC motor like this: http://i1-news.softpedia-static.com/images/news2/How-Brushless-DC-Motors-Work-3.jpg Does it reach a constant rotational speed? I know that when a current flows through it, Flemmings Left HAnd rule causes a couple of forces that results in rotation. As this happens, its flux linkage changes and Lenz's and Faradays law says that this causes an EMF to be induced as to oppose the current produced from the p.d. from the dc power supply. What I don't understand is how the motor would move? would it accelerate then slow down, then accelerate then slow back down etc. or would it reach an equilibrium speed? Thanks!