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The counter EMF of a DC motor

The counter EMF of a DC motor Correct Answer helps in energy conversion

  • We know that the back emf opposes the supply voltage.
  • The supply voltage induces the current in the coil which rotates the armature.
  • The electrical work required by the motor for causing the current against the back emf is converted into the mechanical energy and that energy is induced in the armature of the motor.
  • Thus, we can say that energy conversion in DC motor is possible only because of the back emf.

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