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Explain the following terms with suitable examples : Ferromagnetism and Ferrimagnetism. |
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Answer» Solution :Ferromagnetism : (i) Substance which are ATTRACTED most easily in magnetic field is called Ferromagnetic substance. (ii) Examples : Fe, Co, Ni, `CrO_(2)` and aluaco (alloy of Co, Fe and Cu). Ferrimagnetism : (i) A substance which is weakly attracted by the magnetic field is called ferrimagnetic substanes. (ii) Examples : `Fe_(3) O_(4)`, ferrites having the formula `M^(2+) Fe_(2) O_(4)`. (where `M^(2+) = Cu^(2+) or Zn^(2+)`). (III) In these SUBSTANCES the alignment of magneitc moment in opposite direction are not equal. |
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