Magnetic susceptibility of a diamagnetic substances

Options

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

Answer

A

Explanation

Magnetic susceptibility is given by ` x=mu_(r)-1` where `mu_(r)` is the relative magnetic permeability
Since `mu`, for diamagnetic materials is less than or equal to n , therefore ` chi` is less or equal to that for diamagnetic materials. Hence , magnetic susceptibility is small and negative for diamagnetic materials.