(Solved): Consider a closed box with dimensions of \( 2 \mathrm{~cm} \times 8 \mathrm{~cm} \times 3 \) \( \m ...

Consider a closed box with dimensions of \( 2 \mathrm{~cm} \times 8 \mathrm{~cm} \times 3 \) \( \mathrm{cm} \) resting within the horizontal electric fields as shown in the figure. The values of the electric fields on the right and left surfaces are indicated on the figure, while the electric filed on the other surfaces is unknown. Find the amount of the charge enclosed by the surface.