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
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 asking:
Anyone can explain ?
Community Comments (1)
Can anyone explain please.
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