Question

explain the principle of operation of dc motor

Answer 1

The principle of working of a DC motor is that "whenever a current carrying conductor is placed in a magnetic field, it experiences a mechanical force". The direction of this force is given by Fleming's left hand rule and it's magnitude is given by F = BIL.

Answer 2

MOTOR PRINCIPLE:-A CONDUCTOR WHICH CAN MOVE FREELY AND WHICH IS KEPT IN A MAGNETIC FIELD , EXPERIENCES A FORCE WHEN CURRENT PASSES THROUGH IT AND IT MOVES.