Question
i cant understand p=B^2/2u
Problems 89 agnein which the saturation magnetization is parallel to the field? (b) In an applied field H, what is the energy per unit volume in a domain in which the saturation magnetization is antiparallel to the field? (c) These two magnetic domains are separated by a domain wall. The applied field H tends to expand one domain and contract the other, in essence producing a force or pressure on the wall. Calculate this pressure (in pascals) for the case of a saturation magnetization of 106 A/m and H 100 A/m. 5-8. a) In an applied field H, what is the energy per unit volume in a domain in vorab eneou nds mpl ?. Ipac. m/m A field H is applied parallel to the magnetic easy axis. Most of the material is magnetized anti-parallel to the field (a memory of an earlier applied H), but one cylindrical domain of radius r with magnetization parallel to the field has formed. Although the magnetic pressure from H (see Problem 5-8) tries to 5-9.
Explanation / Answer
Solution :-
A) ENERGY PER UNIT VOLUME = 1/2* B*u2
B) 0
C) M = SUSCEPTIBILITY* H
SUSCEPTIBILITY = 10 4
P = B2 /2u
B = uH
u =permeability = susceptibility - 1
