Explain the electric flux through the surface of the cube

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Q. In a particular region of Earth's atmosphere, the electric field above Earth's surface has been measured to be 154 N/C downward at an altitude of 270 m and 174 N/C downward at an altitude of 420 m. Calculate the volume charge density of the atmosphere, assuming it to be uniform between 270 and 420 m. (Hint: You may neglect the curvature of Earth. Why?)

Q. A point charge 9.00 {rm nC} is at the center of a cube with sides of length 0.180 {rm m}. What is the electric flux through the surface of the cube?

Reference no: EM1364812

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