In D.C motor the percentage of residual magnetism is

In D.C motor the percentage of residual magnetism is

Right Answer is:

2 – 3%

SOLUTION

  • Residual magnetism is the amount of magnetization left behind after an external magnetic field is switched off.
  • The amount of residual magnetization is about 2-3% in DC motor.
  • This residual magnetism helps in the starting of the motor and building up speed.
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