An insulating infinite plane has a uniform positive surface charge density P. An insulating sphere has radius R and uniform positive surface charge density S. The perpendicular distance (shortest distance) from the plane to the center of the sphere is d. Assume that the surface charge density of the plane is P=30 while the surface charge density of the sphere is S=80 where 0 is a convenient common factor. Additionally assume that the distance between the sphere and the plane is a multiple of the radius of sphere. d=5R