Q.A generator may loose residual magnetism due to 

  • AHeating 
  • BVibration 
  • COver excitation 
  • DAny of these
Correct Answer : (A)

Heating 

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A generator may loose residual magnetism due to  Heating, Vibration, Over excitation.

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In electromechanical energy conversion devices (e.g generators and motors) a small air gap is left between the stator and the rotor in order to

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