Physics, asked by doll2108, 1 year ago

Derive the relation between magnetization of material and magnetic intensity

Answers

Answered by janardhan521248
0

The magnetic intensity at a point is defined as the force that unit north - Pole experiences when it is placed in that field.


The intensity of magnetic field at P due to single pole is given by:


Intensity of magnetic field at P due to single north pole


Fig: Intensity of magnetic field at P due to single north pole





Intensity of Magnetic field due to a magnet at different points


In Longitudinal Position

Longitudinal Position


+/-m = Magnitude of south and north poles


r = Distance of point P from the centre of the magnet


l = Length of the bar magnet


∴ Intensity of magnetic field at pointP is given by,




Where M is the magnetic  moment = 2*m*l


Case a: For a small magnet,


r2 ≫ l2





In Transverse Position

Transverse Position


Intensity of magnetic field at point P is given by,




When the magnet is of short length,




In Any General Position

Any General Position


The magnetic intensity at a point is defined as the force that unit north - Pole experiences when it is placed in that field.


The intensity of magnetic field at P due to single pole is given by:


Intensity of magnetic field at P due to single north pole


Fig: Intensity of magnetic field at P due to single north pole





Intensity of Magnetic field due to a magnet at different points


In Longitudinal Position

Longitudinal Position


+/-m = Magnitude of south and north poles


r = Distance of point P from the centre of the magnet


l = Length of the bar magnet


∴ Intensity of magnetic field at pointP is given by,




Where M is the magnetic  moment = 2*m*l


Case a: For a small magnet,


r2 ≫ l2





In Transverse Position

Transverse Position


Intensity of magnetic field at point P is given by,




When the magnet is of short length,




In Any General Position

Any General Position



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