JEE Main 201912 Jan, Evening shiftPhysicsEasyMagnetic Effects of Current and Magnetism165× since 2002
A paramagnetic material has 10²⁸ atoms/m³. Its magnetic susceptibility at temperature 350 K is 2.8 10^–4. Its susceptibility at 300 K is :
JEE Main 2019 · 12 Jan, Evening shift · Q7639