Electrical Machines
Compensating winding are used to rectify the flux density waveform at

  region under main pole.
 throughout the air gap.
 interpole region.
None of these

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Electrical Machines
In a star - delta starting of an IM

  line voltage is 57.7 % of stator voltage.
  applied voltage per stator phase is 57.7 % of a line volt
  reduced voltage is applied to the stator.
  resistance is inserted in the rotor.

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