Weiss' Theory (Domain theory of ferromag : According to weiss, a feromagnetic substance. contains atoms with permanent magnetic. moments, as in a paramagnetic substance, but due to special form of interaction.

1. Submitted by:-
Shraddha Sahu
Prachi Manhar
Rishita Markande
Santosh Khute
Bhupendra kumar Latia

2. Conclusion

3. Introduction-


4. Ferromagnetism & Ferromagnetic material

5. Weiss molecular theory

6. DOMAIN THEORY
Ferromagnetic Domains

7. 1. By the motion of Domain walls
2. By the rotation of Domains

10. Introducing the ideas of domains Weiss
assume the relation


11. B

Beff = B + BE ... BE = µᵒHM
Beff = B + µᵒHM
Beff = B + µᵒλM ………. (2)

13. Application of
Ferromagnetism:-

14. Conclusion-
B

B

B

B
