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A current-carrying conductor in a slot of an electrical machine experiences a force acting

  • A.only when the conductor is moving relative to the field
  • B.on the conductor and transmitted to the iron by the slot walls
  • C.on the iron alone
  • D.along the conductor rather than across it

Answer: B

The force is developed on the current-carrying conductor and is passed to the core through the insulation and wedges that hold it in the slot, which is why slot wedging is a mechanical design matter. A stationary conductor in a field experiences the force just as a moving one does.

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