Electrical Machines
Which of following DC generator will be in a position to build up without any residual magnetism in the field?

  Series.
 Shunt.
  Compound.
  Separately excited.

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Electrical Machines
The speed of a DC series motor is

 Inversely proportional to the armature current.
 Proportional to the square of the armature current.
 Proportional to the armature current.
 Proportional to field current.

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