1.

Depict the behaviour of magneticfield lines near(i) diamagnetic and (ii) paramagnetic substances. Justify, giving reasons.

Answer»

SOLUTION :(i) When paramagnetic substances are placed in a MAGNETIC field most of the magnetic filed lines prefer to PASS through them. It SHOWS `mu` is more than 1 i.e. `B//H gt 1 or B gt H.`
[B inside the material is larger than air.]
(ii) In ferromagnetic material the magnetic field lines prefer to pass through them.
It shows `mu gt gt 1 or B//H gt gt 1 RARR B gt gt ` H and B magnetic field density inside material is much larger than air.



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