Here , I want to clear about the cause of electromagnetic or interaction torque.>!! I am confused in two things.. I read that the flux produced by stator coil & rotor coil interacts , the interaction give rise to electromagnetic torque.. But how this interaction produce torque..?? Is it like this- " the 2 flux (stator & rotor) generate 2 forces (couple) which tend to rotate the coil , which is the electromagnetic torque..?? And the second reason of electromagnetic torque I'hv read is .. the 2 flux rotor & stator flux produce their north & south poles individually..The stator S pole attracts rotor N pole & repels rotor S pole , resulting in clockwise torque.Similarly , stator N pole attracts rotor s pole & repels rotor N pole , resulting again in clockwise torque. The total torque developed is called electromagnetic torque. Now are'nt these two different reasons..?? I am not able to relate the two , what actually is leading to electromagnetic torque..?? Please explain..