Magnetic substance Ferromagnetic objects are magnetic substance
is a strong magnet (magnet makes it easier), which include iron, cobalt and its compounds Nickels metal magnetic substances, divided into 2
type:
.Permanent magnetic substance (Hard) is a magnetic substance that is not easily damaged magnetic powers after it was made into a template. Iron magnet substance
temporarily (Soft) is a non-magnetic substances may retain magnetic power for a long time after it was made, magnet
.The domain theory of magnetism of magnetic Domain theory State
. This theory; Magnetic substances, consisting of the Protocol or magnetic molecules. Which raengkratham each other and live in an area which is known as the domain, which is the same direction pointing to pole.
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