Question
Thu September 20, 2012 By: Megha Merin

why is pure iron not used for making permanent magnets? name one material used for making permanent magnets?

Expert Reply
Fri September 21, 2012
because the retentivity of pure iron, i.e the abillity to retain the magnetic field induced.
 
an alloy of alluminium and iron is used for making pernmanet magnets
they are used in small motors and some watches.
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