Why The Air Gap Between The Pole Pieces And The Armature Is Kept Very Small?

Why The Air Gap Between The Pole Pieces And The Armature Is Kept Very Small?
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1 Answer

Answer :

The air gap between the pole pieces and the armature is kept very small to keep the field strength at its highest value.
This is due to the reason the flux lines can pass through iron very easily than the air gap.
The small air gap generates high voltage.
Larger the air gap me stronger must be the magnetizing force to produce the required voltage hence the air gap is kept very small.
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