The variation of magnetic susceptibility $(\chi)$ with temperature $(T)$ for a diamagnetic substance is shown correctly by which graph?

Curie's law can be written as

$A$ paramagnetic salt contains $2 \times 10^{26} \, m^{-3}$ atomic dipoles. Each dipole has a magnetic moment of $1.5 \times 10^{-23} \, A \cdot m^2$. What is the saturation magnetization?

$A$ diamagnetic liquid is filled in a $U$-tube. One arm of the $U$-tube is placed in an external magnetic field with the meniscus in line with the field. The level of the liquid in that arm will

$A$ proton has spin and magnetic moment just like an electron. Why then is its effect neglected in the magnetism of materials?

$A$ small bar of ferromagnetic substance is placed in a non-uniform magnetic field. In which direction does it move?