The composition of a magnet is iron, cobalt, nickel and other atoms.A magnet produces a magnetic field and has the property of absorbing ferromagnetic substances such as iron, nickel, cobalt and other metals.Magnet varieties: class magnet shape: square shaped magnets, magnet, tile shaped magnets, cylindrical magnet, ring magnets, wafer magnets, magnet, magnet, magnet, magnetic frame attribute class magnets, samarium cobalt magnet, ndfeb magnets, powerful magnets, ferrite magnets, alnico magnets, iron, chromium cobalt magnet industry class magnet: magnet magnetic components, motor, plastic rubber magnets, magnetic, and so on.Magnets can be divided into permanent magnets and soft magnets. Permanent magnets are added with strong magnetism, so that the spin of magnetic materials and the angular momentum of electrons are arranged in a fixed direction. Soft magnets are added with electricity.The soft iron will gradually lose its magnetism when the current is removed.The middle point of a bar magnet is suspended with a thin line. When it stands still, its two ends point to the south and north of the earth. The northern end is called the North Pole or the N pole, and the southern end is the South Pole or the S pole.Imagine the earth as a big magnet, and the earth's magnetic North is the South Pole, and the earth's magnetic South is the North Pole.Between magnets, the magnetic poles of the same name repel each other, and the magnetic poles of different names absorb each other.So the compass and the South Pole crowd out, the North Pole crowd out, and the compass and the North Pole absorb each other.Classification: Magnets can be divided into permanent magnets and non-permanent magnets.Eons magnets can be natural products, also known as natural lodestones, or man-made.Nonpermanent magnets, such as electromagnets, appear magnetic only under certain conditions.