[QUE/EM-04012] EM-PROBLEM

 A spherical shell is cut into two hemispheres which are glued  with an insulated boundary. The potentials of the hemispheres  is kept at constant values \( V_0\)  for \(0\lt \theta\lt \pi/2\) and at \(-V_0\) for \(\pi/2 \lt \theta \lt \pi\).  Use Green function in spherical coordinates to find the potential at an arbitrary point.

RamMohan