alleryThe net magnetic flux through any closed surface is:
AExactly zero
BVery large
CSimply halved
DFully doubled
Answer & Solution
Correct answer: A. Exactly zero
1. Lines leaving a closed surface are matched by lines entering it.
2. There is no magnetic charge inside to make a difference.
3. So the net magnetic flux through it is zero.
_Source: syllabus Physics Part I, Chapter 5, Magnetism and Matter._
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