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3. Electrical fundamentals
A small air gap between magnetic poles results

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3. Electrical fundamentals

A small air gap between magnetic poles results

in a weaker field than a large air gap, for the same magnetising force.
in a stronger field than a large air gap, for the same magnetising force.
in the same field as a large air gap, for the same magnetising force.

Explanation from PART66Online

Air has a high reluctance compared with iron, so a wider air gap drops more of the available magnetomotive force and weakens the field. A small air gap presents less reluctance, so for the same magnetising force more flux is established and the field between the poles is stronger.

bikashkhadka06 asked · 17 Jan 2023

Anyone can explain ?

Community Comments (1)

Giacomo 10 Mar 2026

I think it is a mistake.
Can anyone explain please.

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