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Natural magnet is ferroferric oxide

by:Newland     2020-04-17
Natural magnet is ferroferric oxide if the planet as a big magnet, the earth's magnetic North Pole is to point to the South Pole, pole is magnetic. Between the magnets and magnet, mutually exclusive, different magnetic poles with the same phase. Mutually exclusive, so, the compass and the South Pole ones and the arctic are exclusive, compass and behind the attraction. Classification: the magnet can be divided into & other; A permanent magnet & throughout; With & other; The permanent magnet & throughout; 。 A permanent magnet can be a natural product, also called lodestone, can also be made by human. The permanent magnet, such as the electromagnet, only under certain conditions will be magnetic. Such as iron, cobalt, nickel or ferrite ferromagnetic kind material is different, its internal electron spin can spontaneously lined up in a small scope, forming a spontaneous magnetization, the spontaneous magnetization area is called magnetic domain. Ferromagnetic kind material after magnetization, internal magnetic domain uniformly lined up neatly, direction, make the magnetic strengthen, constitute a magnet. Magnet is the magnetization process of pig iron absorption process, the magnetized iron and magnet attraction between different polarity, iron and magnet is & other; Sticky & throughout; Together. Natural magnet is ferroferric oxide, and artificial magnet is usually steel, steel will remain magnetic after magnetization. Magnet, powerful magnets, special-shaped magnets, magnet manufacturer,
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