principle and operation of a dc motor
The principle of operation of a d.c motor can be stated in a single statement as when a current carrying conductor is placed in a magnetic field it experiences a mechanical force . In a practical d.c motor field winding produces a required magnetic field while armature conductors play a role of a current carrying conductors and hence armature conductors experience a force. As conductors are placed in the slots which are on the periphery, the individual force experienced by the conductors acts as a twisting or turning force on the armature which is called a torque. the torque is the product of force and the radius at which this force acts. So overall armature experiences a torque and starts rotating.
Basic Electrical Engineering
Tags. how works a DC motor works-working principle of a dc motor
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