Permanent magnets are made of __________ materials
a) Dia magnetic
b) Para magnetic
c) Ferro magnetic
d)superparmagnetic
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1
Answer:
Permanent magnets are made from "hard" ferromagnetic materials such as alnico and ferrite that are subjected to special processing in a strong magnetic field during manufacture to align their internal microcrystalline structure, making them very hard to demagnetize.
Explanation:
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Answered by
1
Answer:
Ferromagnetic materials
Explanation:
Permanent magnets are made from "hard" ferromagnetic materials such as alnico and ferrite that are subjected to special processing in a strong magnetic field during manufacture to align their internal microcrystalline structure, making them very hard to demagnetize.
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