Question

12. Explain the principle of working of simple electric motor. What is the role of
split rings in an electric motor? How are commercial motors different from
simple electric motor.​

Answer 1

Answer:

In electric motors, the split ring acts as a commutator. ... In commercial motor an electromagnet is used in place of permanent magnet. Commercial motors have more number of turns of conducting wire in current carrying coil. Commercial motors have soft iron core on which the coil is wound.

Answer 2

Answer:

Role of Split Ring in an Electric Motor

For the continuous rotation of the coil in the same direction, the current in the coil must be reversed. Therefore, after every half rotation of the coil the direction of the couple rotating the coil remains the same and the coil continues its rotation in the same direction.