Electrical Machines
Number of tappings for each equalizer ring is equal to

  number of pole pairs.
  number of poles.
  number of parallel paths.
  number of commutator segments.

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Electrical Machines
In an alternator, voltage drops occurs in

  armature resistance only.
  armature resistance and leakage reactance.
  armature resistance, leakage reactance, armature reaction and earth connection.
  armature resistance, leakage reactance and armature reaction.

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