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Which part of an alternator carries the field winding?

  • A.The rectifier
  • B.The regulator, which controls the field current and therefore contains the winding that produces the magnetic field
  • C.The rotor
  • D.The stator, whose three windings are arranged around the housing and produce the output of the machine

Answer: C

The rotor carries a single field coil between two claw pole pieces, and it rotates within the stationary stator windings. That arrangement means only the small field current passes through brushes. The stator produces the output. Checking which component actually carries the load settles most questions of this kind at once. Naming the cost of a choice alongside its benefit is what turns a fact into a design decision. A symptom that appears under one condition and not another is what narrows the diagnosis quickly.

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