Magnetization and Magnetic Intensity

The magnetic susceptibility of a paramagnetic substance at $-173 \mathrm{℃}$ is $1.5\times {10}^{-2}$, then it's value at $-73 \mathrm{℃}$ will be:

For super conductors, magnetic susceptibility is -

Susceptibility of a diamagnetic substance is

Relative permeability of iron is $5500$. Its magnetic susceptibility is

Susceptibility of $\mathrm{Mg}$ at $300 \mathrm{K}$ is $1.2\times {10}^{-5}.$ The temperature at which susceptibility will be $1.8\times {10}^{-5}$ is :

The magnetic field $B$ and the magnetic intensity $H$ in a material are found to be $1.6 \mathrm{T}$ and $1000 \raisebox{1ex}{$\mathrm{A}$}\!\left/ \!\raisebox{-1ex}{$\mathrm{m}$}\right.$ respectively. Calculate the relative permeability ${\mu }_r$ and the susceptibility $\chi$ of the material ?

A bar magnet made of steel has magnetic moment of $2.5 {\mathrm{Am}}^2$ and a mass of $6.6\times {10}^{-3} \mathrm{kg}$. If the density of steel is $7.9\times {10}^3 {\mathrm{kgm}}^{-3}$, find the intensity of magnetization of the magnet.

The susceptibility of annealed iron at saturation is $5500$. Find the permeability of annealed iron at saturation. ${\mu }_0=1.257\times {10}^{-6}$

Choose the INCORRECT statement

If the magnetic flux is expressed in weber, then the magnetic induction can be expressed in 

What is meant by magnetic induction?

The relative permeability of iron is $6000$. Its magnetic susceptibility is _____.

The susceptibility of magnesium at $300 \mathrm{K}$ is $1.2\times {10}^{-5}$. At what temperature (in Kelvin) will the susceptibility increase to $1.8\times {10}^{-5}$?

For superconductors, magnetic susceptibility is -

What is the maximum possible intensity of magnetisation in the paramagnetic gas at  $27°\mathrm{C}$ and the number of molecules per unit volume in it is $2\times {10}^{26} {\mathrm{m}}^{-3}$. Given dipole moment of each molecule is $1.5\times {10}^{-23} \mathrm{A}-{\mathrm{m}}^2$.

The magnetic susceptibility of a paramagnetic substance at $-173 \mathrm{℃}$ is $1.5\times {10}^{-2}$, then it's value at $-73 \mathrm{℃}$ will be:

The relation connecting magnetic susceptibility $X_m$ and relative permeability ${\mu }_r$ is

A domain in ferromagnetic iron in the form of cube is having $5\times {10}^5$ atoms. If the side length of this domain is $1.5 \mathrm{\mu m}$ and each atom has a dipole moment of $8\times {10}^{-24} \mathrm{A} {\mathrm{m}}^2$, then magnetisation of domain is 

A magnetic intensity of $1500 \mathrm{A} {\mathrm{m}}^{-1}$ produces a flux of $2.4\times {10}^{-5} \mathrm{Wb}$ in a iron bar of cross sectional area $0.5 {\mathrm{cm}}^2$. The permeability of the iron bar is

The magnetic field $\left(B\right)$ inside a long solenoid having ${n }^{}$turns per unit length and carrying current $I$ when iron core is kept in it is ( ${\mu }_0$ = permeability of vacuum, $\chi$ = magnetic susceptibility)