The electric field in region is given by $\overrightarrow{\mathrm{E}}=200\hat{\mathrm{i}} \mathrm{N}/\mathrm{C} \mathrm{by} \mathrm{x}>0 \mathrm{and} -200\hat{\mathrm{i}} \mathrm{N}/\mathrm{C} \mathrm{for} \mathrm{x}<0\mathrm{. }$A closed cylinder of length 2 m and cross-section area 10² m² is kept in such a way that the axis of cylinder is along x-axis and its center coincides with origin. Find the total charge inside the cylinder $\left(\text{ in }\times {10}^{-8} \mathrm{C}\right)$. Take the value of ${\mathrm{\epsilon }}_0=8.85\times {10}^{-12}{\mathrm{C}}^2{\mathrm{m}}^2\mathrm{N}.$