(c) Hence or otherwise, sketch a well-labelled graph for the variation of the following quantities with distance r from the centre of the atom:
(i) on Fig. 4.3 (a): electric potential V for the +Q point charge
(ii) on Fig. 4.3 (b): electric potential V for the -Q spherical charge
(iii) on Fig. 4.3 (c): electric potential V for the atom
Fig. 4.3 (a)
Fig. 4.3 (b)
Fig. 4.3 (c)