What Is a Permanent Magnet?
One of the most impressive properties of magnets is their ability to produce a magnetic field. This invisible field is responsible for many of the properties of magnets, including their ability to attract other magnets and pull on ferromagnetic materials. Here is a quick description of what a permanent magnet is and how it works. This article explains what a permanent or permanets magnet is, how they're created, and what they can be used for. Rare Earth Materials exhibit the highest magnetic force and flux density at room temperature. They are typically very small in volume and require a high curie temperature. By contrast, Ferrite operates at low temperatures and requires a large pole face area. The calculation for a yoked magnet's magnetic output is similar to that for a permanent magnet . For a yoked magnet, substitute 2L for L, but the 2:17 type is more stable. Neodymium iron boron (NdFeB) magnets are the most powerful commercially available permanent magnets. They are