Electrical Machines
In induction motors, there is large decrease in maximum power factor when the dispersion coefficient is ________________.

  increased.
 decreased.
 kept constant to certain value.
 remains same.

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Electrical Machines
Compensating windings are used in DC generators

None of these
  mainly to reduce the eddy currents by providing local short circuit.
  to provide path for the circulation of cooling air.
  to neutralize the cross magnetizing effect of the armature reaction.

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