Write the principle of working of an electric motor

Magnetic Effects (C10)

Write the principle of working of an electric motor. Explain the function of the following parts of an electric motor:

  1. Armature
  2. Brushes
  3. Split ring

Answer

Principle of working of electric motor: A coil carrying electric current placed in an external magnetic field experiences a force.

Function of armature: Enhances the power of the motor and induces motion.

Function of brushes: Helps easy transfer of charge between the coil and the external circuit.

Function of split rings: Reverses the direction of current after each half rotation of the coil so that the coil can keep rotating continuously.