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permanent and induced magnetism, magnetic forces and fields

by:Maghard      2020-03-09
Iron, steel, nickel and cobalt are magnetic materials.
They are magnetic and attracted by either pole of the magnet.
Permanent magnets are usually made of magnetic materials like steel.
Permanent magnets always produce force on other magnets or magnetic materials.
The main feature of a permanent magnet: it produces its own magnetic field. The magnetic field cannot be turned on and off-it is there all the time. Iron and horseshoe magnets are examples of permanent magnets.
Induction magnets are like permanent magnets, and induction magnets become magnets only when placed in a magnetic field.
When the magnet is removed from the magnetic field, the inductive magnetic field is quickly lost.
When the iron chip is close to the bar magnet, the iron chip in the image becomes an induction magnet.
Like all induction magnets: they are only attracted by other magnets, they are not reloaded when they are removed from the magnetic field file, they lose most or all of their magnetic properties, and will be attracted to the bar magnetic test of the permanent magnet tank of the magnetic steel: attract or reject another permanent magnetic magnet material (
But not excluding it)curriculum-key-
FactA permanent magnet is a magnet that repels another magnet.
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