An infinite plane sheet of charge having uniform surface charge density $+\sigma_3 \mathrm{C} / \mathrm{m}^2$ is placed on $\mathrm{x}-\mathrm{y}$ plane. Another infinitely long line charge having uniform linear charge density $+\lambda_{\mathrm{e}} \mathrm{C} / \mathrm{m}$ is placed at z $=4 \mathrm{~m}$ plane and parallel to y -axis. If the magnitude values $\left|\sigma_s\right|=2\left|\lambda_e\right|$ then at point $(0,0,2)$, the ratio of magnitudes of electric field values due to sheet charge to that of line charge is $\pi \sqrt{n}: 1$. The value of n is: