Electrical Machines
Which of following winding is connected in series with armature winding of DC machine?

 Both Compensating and Commutating pole winding.
 Commutating pole winding.
 Compensating winding.
 Auxiliary winding.

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Electrical Machines
For a given torque, reducing diverter resistance of a DC series motor causes

 decrease in speed but armature current remains the same.
 decrease in speed demanding less armature current.
 increase in speed demanding more armature current.
 increase in speed but armature currnet remains the same.

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