A paramagnetic substance of susceptibility `3 xx10^(-4)` is placed in a magnetic field of `3xx 10^(-4)A m^(-1)`. . Then , the intensity of magnetisation in units of A `m^(-1)` is

Options

A. `1.33 xx 10^(8)`
B. `0.75 xx 10^(-8)`
C. `12 xx 10^(-8)`
D. `14 xx 10^(-8)`

Answer

C

Explanation

`I= chi_(e)B rArr I= 3 xx 10^(-4) xx 4 xx 10^(-4) = 12 xx 10^(-8)`