Question

Permanent magnets are made of
a)Steel
b)Alnico
c)Nipermag
d)Tungsten
▪︎ A and B
▪︎ A,B and D
▪︎ A,B and C
▪︎A and D
class 10 please give known answer ​

Answer 1

Answer:

Permanent magnets are made from special alloys (ferromagnetic materials) such as iron, nickel and cobalt, several alloys of rare-earth metals and minerals such as lodestone.

Answer 2

Answer:

d. tungstun steel.

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