Let's suppose you have a circular magnetic gradient of 1 gauss per degree which delivers 1 Nm of torque to a rotor. Further suppose that, at the discontinuity of the gradient, you kick the rotor of a motor past the "sticky spot" with a mechanical force.
Now you increase the gradient by a factor of 100. Windage and bearing resistance do not change. How long and hard must you kick? Do not forget to consider that the revolutions of the motor are what deliver work and the kick is shorter with faster rotation. Terry
