Understanding Magnetic Materials: Flux, Saturation, and Permeability
Classified in Physics
Written on in 
English with a size of 3.11 KB
INDUCTION / magnetic flux density: the number of lines of force crossing the unit area.
Paramagnetic material: when placed in a magnetic field and become magnets are oriented in the same direction as the field. Magnetic field to cease its magnetism disappears. (weakly attracted) Cr, Al ..
Diamagnetic material: when placed inside a magnetic field, are magnetized in the opposite direction to the field. These substances are called diamagnetic and their property is called diamagnetism. (weakly repelled) Na, Cu, N, H. .. .
Ferromagnetic materials: the electron spins tend to align because of the forces between them and form small regions called domains. By placing these substances under the action of a field, partially oriented domains and grow those who are in the same direction. If the field is high, may target all domains in the same direction of the field. If you remove the magnetic field, the domains have to keep your address. As the material is magnetized. It is used to create permanent magnets.
RELATIVE PERMEABILITY COEFFICIENT (?R) is the relationship between the number of lines of force crossing the unit area of a magnetic material and the number of lines that cross in the void.
Magnetic flux (?) gives us an idea of the density of magnetic field lines in an area of the field
Magnetic field produced by a current element: the lines of force are closed curves around the driver. To determine the effect of magnetic field using the corkscrew rule.
Magnetic saturation: the magnetize a ferromagnetic material comes a time in which only increase the magnetic intensity, the flow remains constant, this is due to the fact that all magnetic domains and are oriented, ie we have reached saturation magnetic.
Remanence: disappear after the action of magnetic field in ferromagnetic materials, the substance still has a certain level of magnetic induction.
INTENSITY COERCIVE: to cancel the induction must be applied a field strength equal but opposite to that used to magnetize.