A point charge of 10 µC is at an unspecified location inside a cube of side length 2.0 cm. Find the net electric flux through the surfaces of the cube.
The electric field in a region is given by , where , , and . What is the net charge enclosed by the shaded volume shown?
The cross-sections of the closed surfaces (a), (b), (c), and (d), are shown in the accompanying diagrams.