The function of pole shoes in the case of D.C. machine is______________?
Correct answer: D. to discharge all the above functions
- A. to reduce the reluctance of the mag¬netic path
- B. to spread out the flux to achieve uniform flux density
- C. to support the field coil
- D. to discharge all the above functions
Explanation
Pole shoes reduce magnetic reluctance, spread flux over the armature for a more uniform flux density, and provide mechanical support for the field coils. Hence all the listed functions apply.
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