Question

Compare the values of Relative Permeability and Magnetic Susceptibility of Dia, Para and Ferro magnetic substances.

Answer 1

We compare the variables of relative permeability and magnetic susceptibility of dia, para and ferro magnetic substances to obtain the required solution, in a tabulated form.

Complete step by step answer:
$\varepsilon$ is a small positive number of paramagnetic materials
$\chi$ is magnetic susceptibility
${\mu _r}$ is relative magnetic permeability of the substance
$\mu$ is magnetic permeability of the substance
${\mu _0}$ is the permeability of vacuum.
The comparison is,

Diamagnetic	Paramagnetic	Ferromagnetic
$- 1 \leqslant \chi < 0$	$0 < \chi < \varepsilon$	$\chi > > 1$
$0 \leqslant {\mu _r} < 1$	$1 < {\mu _r} < 1 + \varepsilon$	${\mu _r} > > 1$
$\mu < {\mu _0}$	$\mu > {\mu _0}$	$\mu > > {\mu _0}$

Additional information:
Relative permeability: The relative permeability of a phase is a dimensionless indicator of the effective permeability of the phase as multiphase flows in porous media. This is the relationship between the productive permeability of the process and its absolute permeability. It is an adjustment to multiphase flow by Darcy's law.

Magnetic susceptibility: In electromagnetism, magnetics sensitivity is a measure of how much the material is magnetized in the applied magnetic field, (Latin: susceptibility, "receptive"; denoted$\mu$) . The magnetic momentum M ratio to the magnetization field strength H applied is the unit length. This makes it possible to distinguish the most material reaction to an applied magnetic field into two categories: alignment with the magnetic field, $\mu > 0$ , defined as paramagnetism or field alignment, ′ $< 0$ .

Note: Paramagnetic materials are drawn to magnetic fields and therefore have greater than one relative magnetic permeability (or similarly a positive magnetic susceptibility). Applied field's magnetic moment is a linear and very poor field power.