A report onMagnetic field and Magnetization

Net magnetization results from the response of a material to an external magnetic field.

- Magnetization

In a vacuum, the two fields are related through the vacuum permeability, ; but in a magnetized material, the terms differ by the material's magnetization at each point.

- Magnetic field

Magnet

A magnet is a material or object that produces a magnetic field.

The local strength of magnetism in a material is measured by its magnetization.

Ferromagnetism

Basic mechanism by which certain materials form permanent magnets, or are attracted to magnets.

Basic mechanism by which certain materials form permanent magnets, or are attracted to magnets.

Permanent magnets (materials that can be magnetized by an external magnetic field and remain magnetized after the external field is removed) are either ferromagnetic or ferrimagnetic, as are the materials that are noticeably attracted to them.

Magnetic moment

In electromagnetism, the magnetic moment is the magnetic strength and orientation of a magnet or other object that produces a magnetic field.

is the magnetization.

Paramagnetism

Paramagnetism is a form of magnetism whereby some materials are weakly attracted by an externally applied magnetic field, and form internal, induced magnetic fields in the direction of the applied magnetic field.

Demagnetizing field

[[File:VFPt magnets BHM.svg|thumb|Comparison of magnetic field (flux density)

[[File:VFPt magnets BHM.svg|thumb|Comparison of magnetic field (flux density)

The demagnetizing field, also called the stray field (outside the magnet), is the magnetic field (H-field) generated by the magnetization in a magnet.

Magnetic hysteresis

[[Image:StonerWohlfarthMainLoop.svg|thumb|right|400px|[[Stoner–Wohlfarth model|Theoretical model]] of magnetization

against magnetic field

Ferrimagnetism

Material that has populations of atoms with opposing magnetic moments, as in antiferromagnetism.

Material that has populations of atoms with opposing magnetic moments, as in antiferromagnetism.

[[Image:StonerWohlfarthMainLoop.svg|thumb|right|233x233px|[[Stoner–Wohlfarth model|Theoretical model]] of magnetization

against magnetic field

Maxwell's equations

Maxwell's equations are a set of coupled partial differential equations that, together with the Lorentz force law, form the foundation of classical electromagnetism, classical optics, and electric circuits.

Maxwell's equations are a set of coupled partial differential equations that, together with the Lorentz force law, form the foundation of classical electromagnetism, classical optics, and electric circuits.

The equations provide a mathematical model for electric, optical, and radio technologies, such as power generation, electric motors, wireless communication, lenses, radar etc. They describe how electric and magnetic fields are generated by charges, currents, and changes of the fields.

These bound currents can be described using the magnetization