A magnetic dipole m = -m0^z is situated at the origin, in an otherwise uniform magnetic
eld B = B0^z. Show that there exists a spherical surface, centered at the origin, through
which no magnetic eld lines pass. Find the radius of this sphere, and sketch the eld lines,
inside and out.
The Attempt at a Solution
I have no idea how to approach this question. please dont solve it for me, but if you could point me in the right direction to try and solve this i would be grateful.