Physics · Electromagnetism

Why does magnetic fringing occur at the air gaps of a magnetic circuit?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1The magnetic field lines spread out in the air gap because air has no magnetic boundary.✓
2The magnetomotive force (MMF) is not constant.
3The reluctance of the ferromagnetic material increases.
4The magnetic poles are not well-defined.

Correct answer

The magnetic field lines spread out in the air gap because air has no magnetic boundary.

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