Magnets are a common thing in daily life. Magnets are used in many electrical equipment, such as loudspeakers for playing music, Maglev, and magnetic resonance in hospitals! A magnet is an object with mutual repulsion and attraction. Do you know why a magnet has magnetism? There are many objects in nature, why don't they have magnetism? Why do magnets have magnetism? How are magnets made? After reading it, you will understand!

Magnets are composed of atoms such as iron, cobalt, and nickel due to their internal structure. The structure is quite unique, and it is inherent in this move. The reason why a magnet can generate a magnetic field is that one end of the magnet is the North Pole and the other end is the South Pole, which can attract ferromagnetic materials. However, there are many objects in nature that do not have magnetism because the magnetic substances in iron, nickel, and cobalt are different. The electrons inside them can spontaneously rehearse in the same direction, which strengthens the magnetism and constitutes a magnet.

The process of attracting iron by a magnet also arises from the attraction it exerts on the iron block, when the magnet firmly adheres to the iron block. What we mean by magnets is that they have magnetic force, which is why they can attract iron but not aluminum, copper, and other objects. The internal structure of different metals is different, and the unit of induction intensity is Tesla, abbreviated as Te or T. Magnets can also be subdivided into permanent and non permanent magnets.