Electrical Machines
The effect of ------------------ on main field flux is armature reaction?

 armature current
All of these
 armature flux
 armature mmf

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

  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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