# [Q]One question about Magnetic boundary conditions.

1. Oct 26, 2008

### good_phy

Hi.

You know that $$B_{1n} = B_{2n}$$ as one of the boundary condition when

magnetic field is go across from material 1 to material 2, n means direction perpendicular to

the boundary surface.

I wander this theorem is right in non-uniform field which is function of space variable r.

I read prove of this theorem that using limit so i thought this theorem is right only for close

observation point to boundary.