Before revision:  The study of such mother bodies was originally from Mathematical Physics, initiated by Zidarov \mbox{%DIFAUXCMD Zidarov:1990hr and developed by Bj\"{o}rn Gustafson and Makoto Sakai \mbox{%DIFAUXCMD GustafssonSakai:1999hr . In this paper, we explore the mother bodies for convex polyhedra in two dimensions and present an algorithm to find them. In addiction, we apply the mother body method to Electrostatics to compute the potentials of electric fields.
After revision:  The study of such mother bodies was originally from Mathematical Physics, initiated by Zidarov \mbox{%DIFAUXCMD Zidarov:1990hr and developed by Bj\"{o}rn Gustafson and Makoto Sakai \mbox{%DIFAUXCMD GustafssonSakai:1999hr . In this paper, we attempt to apply the brilliant idea of mother body to Electrostatics to compute the potentials of electric fields.