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Electrical Machines

Electrical Machines
The output power of a dc motor is given by

  EbIa2.
  EbIa.
  EIa.
  none of these.

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Electrical Machines
Armature of DC machine is made of

 insulating material.
 non-ferrous material.
 silicon steel.
 conducting material.

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Electrical Machines
Dynamic braking can be used for

All of these
 series motors.
 shunt motors.
 compound motors.

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Electrical Machines
A 3 - φ induction motor can also be referred to as a

  shunt motor.
  transformer.
  repulsion motor.
  asynchronous motor.

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Electrical Machines
A series motor is efficiently suitable for

 low starting torque operation.
 none of these.
 constant speed operation.
  high starting torque operation.

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Electrical Machines
Which of the following is minimized by laminating the core of a transformer?

 Stray loss.
 Eddy current loss.
 Hysteresis loss.
 Copper loss.

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MORE MCQ ON Electrical Machines

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