easy operation about dc motor

Motor is an electrical machine which converts the electrical energy into the mechanical energy.
It's action is based on the principle that when a current carrying conductor is placed in a magnetic field, it experiences a mechanical force whose direction is given by Flemming's left hand rule.Constructionally there is no difference between DC motor and DC generator.
When the DC supply is provided to field pole through field winding so that it produces uniform magnetic field in between the field poles where armature is placed.Again the DC supply is feed to armature winding through carbon brush and commutator segments, the current enters through C1X1B and comes out through A1Y1C2.Then by principle when current carrying armature winding placed in magnetic field ,the armature experiences a force and hence it rotates in clock wise direction (due to Flemming's left hand rule).
After 180 degree rotation the commutator segments change it's position therefore the direction of current is same and hence the motor rotates in same direction i.e,clockwise direction.