Magnetostatics MOC

Magnet

A magnet is, generally speaking, an object which exhibits a magnetic field. Materials can produce magnetic fields by three main phenomena:

1. Paramagnetism — Induced magnetic field parallel to an external magnetic field
2. Diamagnetism — Induced magnetic field diametrically opposed to an external magnetic field
3. Ferromagnetism — Much stronger than paramagnetism

Many important properties of a magnet come from their magnetization , which is the density of their magnetic dipole moment . This involves approximating a material as a continuous distribution of perfect magnetic dipoles. A magnet obeying a linear magnetization law is termed a Linear magnet.

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