In the electric motor there are two types of part 1)moving and 2)stationary
In stationary part containing field winding whis use to provide uniform maganetic field it at inner side of yoke
In moving part the armature is main part on which the winding is wound in such manner which which provide attraction and repulsion at every pole of field winding.
According to Faradays law when the current carrying conductor is placed in magnetic field the force is act on it and this force is from all direction we can say it is torque.and motor armature rotates