I will be really happy enough if this answer is answered more reasonably in a simple explanation. What is the real difference between a DC and a AC motor? I know about the alternating and the direct current. One flows in reverse ad the other in one direction. But that's not clear enough. Please help me out.
A good explanation requires diagrams which can't be included here. It is important to understand that the direction of the force on a wire in a constant magnetic field depends on the direction of the current. Reversing the current direction reverses the force. The force's direction must change each half-rotation to keep the motor turning. This force-reversal can be achieved by: - in a DC motor using a split ring commutator and - in an AC motor having two slip rings and using the fact that AC reverses direction each half-cycle. See link.
