A paramagnetic material has 10 28 atoms m - 3 . Its magnetic susceptibility at temperature 350 K is 2.8 Ã— 10 - 4 . Its susceptibility at 300 K is

Question

Aicharya · Accepted Answer

From Curie's law, the magnetic susceptibility is inversely proportional to the temperature, i.e.,
$χ \propto \frac{1}{T}$
Hence, the ratio of magnetic susceptibility at different temperature $T_{1} = 350 K$ and $T_{2} = 300 K$ .
$\frac{χ_{2}}{χ_{1}} = \frac{T_{1}}{T_{2}}$
$χ_{2} = χ_{1} \times \frac{T_{1}}{T_{2}} = 2.8 \times 10^{- 4} \times \frac{350}{300}$
$χ_{2} = 3.267 \times 10^{- 4}$ .

A paramagnetic material has 10 28 atoms m - 3 . Its magnetic susceptibility at temperature 350 K is 2.8 Ã—…

Solution