Why magnets have magnetism

- Nov 13, 2017 -


Magnets magnetism is determined by the characteristics of the magnet If the atom current is explained by the magnetic field generated by the current magnetization of other objects magnetized objects produce electric field interaction of the role of force.

Most of the material is composed of molecules, molecules are made of atoms, atoms and nuclei and electrons. Inside the atom, the electron keeps spinning and rotates around the nucleus. Both types of movement of electrons produce magnetism. However, in most materials, the direction of electron movement is different and disorganized, and the magnetic effects cancel each other out. Therefore, most of the material under normal circumstances, does not appear magnetic, external magnetic force.

Iron, cobalt, nickel or ferrite and other ferromagnetic substances are different, its internal electronic spin can spontaneously arranged within a small area to form a spontaneous magnetization zone, this spontaneous magnetization zone called magnetic domain. Ferromagnetic material after magnetization, the internal magnetic domain neat, aligned in the same direction, so that the magnetic reinforcement to form a magnet. Magnet iron absorption process is the magnetization process of iron, magnetized iron and magnet attraction between the different polarity, the iron firmly with the magnet "stick" together. We say the magnet is magnetic and the magnet has the magnetism.


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