- #1
Dassinia
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Hello, I have an exam Tuesday and I'm solving the problems of previous years :
Consider a disk of radius a and length h of permanent magnetization M = Moz parallel to h.
a/ what are the units of Mo ?
b/Find the magnetic current density Jb inside the cylinder and the curface current density Kb on the three surfaces.
c/ Write boundary conditions of B and H for the three surfaces.
d/ Plot field lines for B and H everywhere.
Kb=Mxn^
Jb=∇xM
a/ A/m
b. Inside the cylinder, the magnetization is constant so
Jb=∇xM =0
I don't get what they mean by the three surfaces, inside the cylinder, outside and ?
Thanks !
Homework Statement
Consider a disk of radius a and length h of permanent magnetization M = Moz parallel to h.
a/ what are the units of Mo ?
b/Find the magnetic current density Jb inside the cylinder and the curface current density Kb on the three surfaces.
c/ Write boundary conditions of B and H for the three surfaces.
d/ Plot field lines for B and H everywhere.
Homework Equations
Kb=Mxn^
Jb=∇xM
The Attempt at a Solution
a/ A/m
b. Inside the cylinder, the magnetization is constant so
Jb=∇xM =0
I don't get what they mean by the three surfaces, inside the cylinder, outside and ?
Thanks !