What does “No isolated magnetic poles” actually mean in Magnetism & Matter, and why does it matter for JEE?
Cutting a bar magnet produces smaller north-south dipoles, not separate monopoles. Therefore net magnetic flux through any closed surface is zero.
In simple words: Cutting a bar magnet produces smaller north-south dipoles, not separate monopoles. Therefore net magnetic flux through any closed surface is zero. Getting No isolated magnetic poles clear matters because JEE questions on Magnetism & Matter usually test this idea directly, not just a formula you memorised.
Key point
No isolated magnetic poles
Common mistake
expecting a cut magnet to leave one north-only and one south-only piece.
Memory tip
every cut makes two complete magnets.
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