A paramagnetic substance of susceptibility `3xx10^(-4)` is placed in a magnetic field of `4xx10^(-4)Am^(-1)`. Then the intensity of magnetization in the units of `Am^(-1)` is

Options

A. `1.33xx10^(8)`
B. `0.75xx10^(-8)`
C. `12xx10^(-8)`
D. `14xx10^(-8)`

Answer

C

Explanation

Susceptibility `(chi)`
`=("intensity of magnetisation (I)")/("magnetic field (B)")`
or `I=chiB`
`therefore I=3xx10^(-4)xx4xx10^(-4)`
or `I=12xx10^(-8)Am^(-1)`