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Question

If a diamagnetic material is placed in a magnetic field,the flux density inside the material compared to that outside will be:

A
Slightly less
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B
Slightly more
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C
Very much more
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D
Same
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Solution

The correct option is A Slightly less
Given: A diamagnetic material in magnetic field
Solution: Diamagnetic material has a property which is
mentioned below in bold letters:-
Magnetic field lines inside a Diamagnetic materials gets
repelled due to which magnetic field intensity gets reduced
inside in comparison of outside the material.
and we all know that,
magneticfluxdensity,ϕ B (magneticfiledintensity)
So, as B decreases ϕ also decreases.
hence, inside material ϕ is slightly less then in comparison to
outside the material.

The correct opt: A







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