Question

The magnets made from iron, cobalt or nickel are called
a.permanent magnet
b.artificial magnet
c.natural magnet
d.none of these​

Answer 1

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Answer 2

Answer:

Materials that can be magnetized, which are also the ones that are strongly attracted to a magnet, are called ferromagnetic (or ferrimagnetic). These include the elements iron, nickel and cobalt and their alloys, some alloys of rare-earth metals, and some naturally occurring minerals such as lodestone.