Electrical Machines
Which of the following motors has negative speed regulation?

 Shunt motors.
 Differential compound motors.
 Both B and C.
 Series motors.

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Electrical Machines
In a 3 - Φ induction motor

  none of them.
  power factor at starting is high as compared to that while running.
  power factor at starting is low as compared to that while running.
  power factor at starting in the same as that while running.

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