Electrical Machines
For high current and low voltage rating which winding is employed to DC machine?

 No wave and lap winding.
 Wave winding.
 Lap winding.
 Both wave and lap winding.

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Electrical Machines
In a 3 - Φ induction motor

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

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Electrical Machines
In speed control of DC Series motor, speed lower than the rated speed can be obtained by

 Connecting an additional resistance in stator circuit.
 Any of the above.
 Connecting an additional resistance in the field circuit.
 Connecting an additional resistance in the armature circuit.

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