Magnetic polarization
Physical size | |||||||
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Surname | Magnetic polarization | ||||||
Size type | Magnetic flux density | ||||||
Formula symbol | J | ||||||
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The magnetic polarization is a physical quantity from the field of electrodynamics of macroscopic media. It characterizes the magnetic flux density within a magnetic material minus the portion of the magnetic field in the vacuum. It is therefore also referred to as the intrinsic magnetic flux density . Your formula symbol is . It is specified in the International System of Units (SI) in the unit Tesla .
definition
The magnetic polarization is defined as the difference between the magnetic flux density B m with matter and the magnetic flux density B 0 in a vacuum at the same magnetic field strength :
with the magnetic field constant .
Connections
is connected:
- with the vacuum flux density over the magnetic susceptibility :
- with the magnetization of the medium via the magnetic field constant :
- .
literature
- Horst Stöcker (Ed.): Pocket book of physics. Verlag Harri Deutsch, Thun / Frankfurt am Main 2000, ISBN 3-8171-1627-6 .