Magnetic systems refer to arrangements of materials that exhibit magnetic properties, such as attraction or repulsion. These systems can include permanent magnets, which maintain a constant magnetic field, and electromagnets, which generate a magnetic field when an electric current flows through them. The behavior of these systems is influenced by the alignment of magnetic domains within the materials. In a magnetic system, the interaction between magnetic fields can lead to various phenomena, such as magnetic resonance and ferromagnetism. These properties are essential in many applications, including electric motors, transformers, and data storage devices like hard drives. Understanding magnetic systems is crucial for advancements in technology and materials science.