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Electric motor

Sumit Hajela
06/10/2020 0 0

The electric motor is a device that converts electrical energy to mechanical energy.

Parts of an Electric Motor

  • Insulated Copper wire: A rectangular coil of wire.
  • Magnet Poles: A magnet as placed above, i.e. the North Pole and the South Pole. This creates a magnetic field, as shown above.
  • Split Rings: Two disjoint C-shaped rings. It acts as a commutator (which can reverse the direction of current)
  • Axle: The split rings are placed on the axle which can rotate freely.
  • Brushes: The outside of the split rings are connected to conducting brushes X and Y.
  • Source Battery: To source current.

The principle of an electric motor:

The electric motor works on the principle of force experienced by a current-carrying conductor in a magnetic field.
Two forces of equal magnitude act in the opposite direction on the two parallel sides of the coil. Since they act along different lines, they cause rotational motion.


  • Electric Fans
  • Refrigerators
  • Mixers
  • Washing machines
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