9.Which type of solid can be used for the preparation of permanent magnet and why?
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Metals,,, like Almunium and Cobalt (Alnico )
And Iron......
Hope this helps ,,they are a good conductor of electricity and can retain magnetism for a longer time.....
Hope this helps
And Iron......
Hope this helps ,,they are a good conductor of electricity and can retain magnetism for a longer time.....
Hope this helps
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