The Coulomb force ( F ) versus (1 / r^2) graphs for two pairs of point charges ( q_1. and q_2 ) and ( q_2 and q_3 ) are shown in figure. The charge…

The Coulomb force $\displaystyle (\mathrm{F})$ versus $\displaystyle \left(1 / \mathrm{r}^{2}\right)$ graphs for two pairs of point charges $\displaystyle \left(\mathrm{q}_{1}\right.$ and $\displaystyle \mathrm{q}_{2}$ ) and ( $\displaystyle \mathrm{q}_{2}$ and $\displaystyle \mathrm{q}_{3}$ ) are shown in figure. The charge $\displaystyle \mathrm{q}_{2}$ is positive and has least magnitude. Then