Electrical Machines
In DC generators, electric current to the external circuit from armature is given through

 slip rings.
 solid connection.
 none of above.
 commutator.

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Electrical Machines
Compensating windings are used in DC generators

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

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