A point charge causes an electric flux of -2 × 10^4 Nm^2 C^-1 to pass through a spherical Gaussian surface of 8.0 cm radius, centred on the charge.…

A point charge causes an electric flux of $\displaystyle -2 \times 10^4 \mathrm{Nm}^2 \mathrm{C}^{-1}$ to pass through a spherical Gaussian surface of $\displaystyle 8.0$ cm radius, centred on the charge. The value of the point charge is : (Given $\displaystyle \epsilon_0=8.85 \times 10^{-12} \mathrm{C}^2 \mathrm{~N}^{-1} \mathrm{~m}^{-2}$ )