Two charged conducting spheres S_1 and S_2 of radii 8 cm and 18 cm are connected to each other by a wire. After equilibrium is established, the ratio…

Two charged conducting spheres $\displaystyle S_1$ and $\displaystyle S_2$ of radii $\displaystyle 8$ cm and $\displaystyle 18$ cm are connected to each other by a wire. After equilibrium is established, the ratio of electric fields on $\displaystyle \mathrm{S}_1$ and $\displaystyle \mathrm{S}_2$ spheres are $\displaystyle \mathrm{E}_{\mathrm{S} 1}$ and $\displaystyle E_{S 2}$ respectively. The value of $\displaystyle \frac{E_{S 1}}{E_{S 2}}$ is $\displaystyle \_\_\_\_$.