Respuesta :
[tex]Electric~potential ~energy~U_{E}=K_{e}.\dfrac{Qq}{R}\\so~ U_{E} \propto \dfrac{1}{R} [/tex]
so to increase Ue by 16 times you gotta reduce R(distence) by 16 times
so to increase Ue by 16 times you gotta reduce R(distence) by 16 times