A material that retains its magnetic properties after an external magnetic field is removed.
a magnet design that utilizes blocks of ferromagnetic materials (permanent magnets) to generate a magnetic field between the two poles of the magnet. There is no requirement for additional electrical power or cooling, and the iron-core structure of the magnet leads to a limited fringe field and no missile effect. Due to weight considerations, permanent magnets are usually limited to maximum field strengths of 0.3T.
a material that, once magnetized in a certain direction, remains magnetized in that direction
a material that when inserted into a strong magnetic field will not only begin to exhibit a magnetic field of it's own, but also continue to exhibit a magnetic field once removed from the original field
a nonelectric device that generates a magnetic field intended to find and remove metallic foreign bodies from eye tissue
a piece of magnetisable material, e
a magnet whose magnetic field originates from permanently magnetized material.
A magnet that retains its magnetism after it is removed from a magnetic field. A permanent magnet is "always on". Neodymium magnets are permanent magnets.
A magnet which retains a nearly constant value of magneto-motive force for an indefinite period.
Magnet normally made of hardened steel that retains its magnetism indefinately.
Materials that retain residual magnetism without needing outside influence, such as some iron compounds or alnico.
