Reitz Foundations of Electromagnetic Theory 3-13

3-13. Show that the problem of an uncharged conducting sphere in an initially uniform electric field Eo may be solved by means of images. [Hint: A uniform electric field in the vicinity of the origin may be approximated by the field of two point charges Q and -Q placed on the z-axis at = = --L and z = +1, respectively. The field becomes more nearly uniform as ( - w. It is evident that Q/2TEL? = EO.]