Electrical Machines
The speed of a 3-phase induction motor operating in its stable region

 increases with increase in the load torque.
 decreases with increase in the load torque.
 decreases with decrease in the load torque.
 remains constant.

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

  Decrease in speed demanding less armature current.
  Decrease in speed but armature current remains the same.
  Increase in speed but armature currnet remains the same.
  Increase in speed demanding more armature current.

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