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- Homework Statement
- Consider a rod with an electric charge density λ that passes through the center of the cube. Prove that the electric flux passing through this cube is equal to = q / ε0

- Relevant Equations
- Gauss's law

Picture for better understanding.

My answer :

I want to know how to solve this problem without using cylindrical. I mean how can we solve this using cube and its sides.

Thanks.