Electrical Machines
A series motor is efficiently suitable for

 none of these.
 constant speed operation.
  high starting torque operation.
 low starting torque operation.

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Electrical Machines
In large sized DC machines the compensating windings are provided to

 compensate for the decrease in speed due to increase of load.
None of these
 reduce eddy current losses by providing local short circuits.
  neutralize voltage induced in coil due to fluctuation of l

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