The image of an electric point dipole is a bit more complicated. If the dipole is pictured as two large charges separated by a small distance, then the image of the dipole will not only have the charges modified by the above procedure, but the distance between them will be modified as well. Following the above procedure, it is found that a dipole with dipole moment M at vector position p lying inside the sphere of radius R will have an image located at vector position ( R 2 / p 2 ) p (i.e. the same as for the simple charge) and will have a simple charge of: