Which magnetic materials have negative susceptibility?

Question

Which magnetic materials have negative susceptibility? (A) diamagnetic materials (B) paramagnetic materials (C) ferromagnetic materials (D) all the above

Tardigrade Admin · Accepted Answer

Diamagnetic substances gets slightly magnetised in opposite direction.
Therefore, instensity of magnetisation is small and opposite to the direction of intensity of magnetising field for diamagnetic materials.
Therefore, magnetic susceptibility

X_{m} = I / H = - v e

Q. Which magnetic materials have negative susceptibility?

diamagnetic materials

paramagnetic materials

ferromagnetic materials

all the above

Diamagnetic substances gets slightly magnetised in opposite direction. Therefore, instensity of magnetisation is small and opposite to the direction of intensity of magnetising field for diamagnetic materials. Therefore, magnetic susceptibility Xm​=I/H=−ve

Diamagnetic substances gets slightly magnetised in opposite direction.
Therefore, instensity of magnetisation is small and opposite to the direction of intensity of magnetising field for diamagnetic materials.
Therefore, magnetic susceptibility $X_{m} = I / H = - v e$