Question

define magnetic intensity, intensity of magnetization, magnetic induction, susceptibility.

Answer 1

$\underline{\bold{Magnetic\: Intensity}}$

It is a vector field associated with external effect. The magnetic intensity is defined as the ratio of applied field to the permeability of free space and is expressed as
$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: H= \frac{ B_{o} }{ u_{o} }$
the SI unit of magnetic intensity is A/m.

$\underline{\bold{ Intensity\: of\: Magnetisation}}$

It is defined as the magnetic moment per unit specimen and is expressed as
$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: I= \frac{M}{V}$

The SI unit of intensity of magnetization is A/m.

$\underline{\bold{Magnetic\: Induction}}$

It is equal to the sum of magnetic intensity and the intensity of magnetization and is expressed as

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: b = u_{o}(h + i)$

$\underline{\bold{Susceptibility}}$

It is the aptness of magnetic material as to how it responds to the magnetic effect. It is defined as the ratio of intensity of magnetisation and the magnetic intensity.

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: kie = \frac{I}{H}$

Answer 2

• $\large\bf{Magnetic \: Intensity -}$

A vector quantity pertaining to the condition at any point under magnetic influence (as of a magnet, an electric current, or an electromagnetic wave) measured by the force exerted in a vacuum upon a free unit north pole placed at the point in question. — called also magnetic force.

• $\large\bf{Intensity \: Of \: Magnetization-}$

The Magnetic moment of a magnet undergoes a change when it is placed in a magnetic field. This change that is, the magnetic moment change per unit volume is the Intensity of Magnetisation

• $\large\bf{Magnetic \: Induction-}$

Electromagnetic or magnetic induction is the production of an electromotive force (i.e., voltage) across an electrical conductor in a changing magnetic field.

• $\large\bf{Susceptibility-}$

The susceptibility is a quantification for the change of an extensive property under variation of an intensive property.