A permanent magnet is a material that retains its magnetic properties over an extended period, providing a constant magnetic field without the need for an external power source. Unlike temporary magnets, which only exhibit magnetic properties when influenced by an external magnetic field, permanent magnets can maintain their magnetism on their own. Permanent magnets find applications in numerous devices, including electric motors, generators, sensors, speakers, magnetic locks, and various electronic components. Their ability to maintain a constant magnetic field makes them essential in various technologies.