Explain the following terms with suitable examples : Ferromagnetism an

1.	Explain the following terms with suitable examples : Ferromagnetism and Ferrimagnetism.
Answer» Ferromagnetism : (i) Substance which are attracted most easily in magnetic field is called Ferromagnetic substance. (ii) Examples: Fe, Co, Ni, CrO₂ and Alnico (alloy of Co, Fe and Cu). (iii) It occurs due to alignment of all magnetic moments (due to unpaired e^-) in the same directions. Ferrimagnetism : (i) A substance which is weakly attracted by the magnetic field is called ferrimagnetic substances. (ii) Examples: Fe₃O₄, ferrites having the formula M²⁺Fe₂O₄ (where M²⁺ = Cu²⁺ or Zn²⁺ ). (iii) In these substances the alignment of magnetic moment in opposite direction are in unequal numbers.

Explain the following terms with suitable examples : Ferromagnetism and Ferrimagnetism.

Answer»

Ferromagnetism :

(i) Substance which are attracted most easily in magnetic field is called Ferromagnetic substance.

(ii) Examples: Fe, Co, Ni, CrO₂ and Alnico (alloy of Co, Fe and Cu).

(iii) It occurs due to alignment of all magnetic moments (due to unpaired e^-) in the same directions.

Ferrimagnetism :

(i) A substance which is weakly attracted by the magnetic field is called ferrimagnetic substances.

(ii) Examples: Fe₃O₄, ferrites having the formula M²⁺Fe₂O₄ (where M²⁺ = Cu²⁺ or Zn²⁺ ).

(iii) In these substances the alignment of magnetic moment in opposite direction are in unequal numbers.

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