Why is pure iron not used for making magnets ? Name one material used for making permanent magnets? Descibe how pemanent magnet are made electrically?
Answers
Answered by
0
Because of 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
an alloy of alluminium and iron is used for making pernmanet magnets
Answered by
1
HEY!!
____________________________
➡️Pure iron not used for making permanent magnets because soft iron has low retentivity but due to small value of coercitivity it is not suitable for making permanent magnets.
➡️Alnico is used for making permanent magnets.
➡️Electromagnets are made by coiling a conductor around a magnetic material.
Which have very high retentivity which enable them to retain magnetism long after the magnetizing field is removed.
____________________________
➡️Pure iron not used for making permanent magnets because soft iron has low retentivity but due to small value of coercitivity it is not suitable for making permanent magnets.
➡️Alnico is used for making permanent magnets.
➡️Electromagnets are made by coiling a conductor around a magnetic material.
Which have very high retentivity which enable them to retain magnetism long after the magnetizing field is removed.
Similar questions