Problem description:

Iron c-magnet in the air.


Geometry of the magnet:

     Height = 0.35m;
     Width = 0.3m;

     Thickness = 0.05m.

Material parameters:

     Permeability of the air = Mu0;
     Permeability of the magnet = 1000 Mu0;

     Coercive force of magnet = 10000 A/m.

Magnetization of  straight parts  of the magnet is specified
in  terms   of  coercive  force  vector.  Effective  surface
currents simulate magnetization in the middle curved part of
the magnet.

Zero  Dirichlet  boundary  condition  is  specified  on  the
outward boundary of the region.

The problem is plane-parallel.