The magnetic susceptibility is negative for:
diamagnetic material only
paramagnetic material only
ferromagnetic material only
paramagnetic and ferromagnetic materials
Get Answer
Magnetic susceptibility for dia-magnetic materials only is negative and low ; for paramagnetic substances low but positive and for ferromagnetic substances positive and high .
A thin diamagnetic rod is placed vertically between the poles of an electromagnet. When the current
in the electromagnet is switched on, then the diamagnetic rod is pushed up, out of the horizontal magnetic
field. Hence the rod gains gravitational potential energy. The work required to do this comes from
the current source
the magnetic field
the induced electric field due to the changing magnetic field
the lattice structure of the material of the rod
Rod gains gravitational potential energy which comes from energy of current source.
An iron rod of susceptibility 599 is subjected to a magnetising field of . The permeability of the
material of the rod is :
Given : Magnetic susceptibility of iron,
Using,
Hence, permeability of the material of the rod,
The net magnetic flux through any closed surface is
Zero
Positive
Infinity
Negative
For closed loops
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