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InterviewSolution
| 1. |
Define ferimagnetism, feromegnatism and antiferomegnatism |
| Answer» Ferro magnetic: the magnetic materials which show permanent magnetism even when the magnetic field is removed.They contain unpaired electrons in maximum number aligned in only ond direction .Ex: Ni Co FeAnti ferromagnetic: in this magnetic moments of materials are aligned in such a wat that net magnetic moment becomes zero.Ex: MnOFerrimagnetic:In this magnetic moments of the materials are aligned in parallel and anti parallel directions in unequal numbers.These materials loose their magnetism on heating and becomes paramagnetic.Ex:Fe3O4, ZnFe2O4,MgFe2O4 | |