Electrical Machines
Which of the following motor is expensive for same Kw output rates?

 AC single phase motor.
 Synchronous motor.
 Induction motor.
 DC Shunt Motor

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Electrical Machines
In a 3 - Φ induction motor

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

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