Electrical Machines
Which motor used in Lathe machine?

  D.C. cumulative compound motor.
  D.C . series motor.
None of these
  D.C. shunt motor.

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Electrical Machines
Which of the following represents the commutator pitch?

 Number of conductors spanned by one coil at the back end of the armature.
 Number of commutator segments between two successive coils.
 The distance between the staring of first coil and its next successive coil
 Number of conductors spanned by one coil at the front end of the armature.

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