The magnetic force of a magnet is determined by the characteristics of the magnet. If the atomic current is interpreted, the magnetic field generated by the current magnetizes another object, and the magnetized object generates an electric field, and the electric field interacts to generate a force.
The matter is mostly composed of molecules, molecules are made up of atoms, and atoms are composed of nuclei and electrons. Inside the atom, the electrons rotate all the way and rotate around the nucleus. Both of these activities of electrons produce magnetism. However, in most substances, the direction of electronic activity is not the same, disordered, and the magnet effect cancels each other out. Therefore, most substances do not exhibit magnetism under normal conditions and have no external magnetic force.
Why is the magnet magnetic? Due to the difference in ferromagnetic materials such as iron, cobalt, nickel or ferrite, the internal electron spins can be consciously arranged in a small range to form a conscious magnetization zone. This conscious magnetization zone is called a magnetic domain. After the ferromagnetic substance is magnetized, the internal magnetic domains are aligned and aligned in the same direction to enhance the magnetic properties, and the magnet is formed.
