Magnetic susceptibility for a paramagnetic and diamagnetic materials is respectively,

Options

A. small, positive and small, positive
B. large, positive and small, negative
C. small, positive and small, negative
D. large, negative and large, positive

Answer

C

Explanation

The magnetic susceptibility of a magnetic substance is defined as the ratio of intensity of magnetisation (l) to magnetic intensity (H), i.e.
`x=(l)/(H)`
For paramagnetic material, x is positive and small `(0ltxltepsilon)`, where is smaal positive number.
For diamagnetic meterial, x is negative and small `(-1lexle0)`.