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Question
If the point charge is now moved to a distance 'd' from the centre of the square and the side of the square is doubled, explain how the electric flux will be affected.
Solution
If we move the charge to a distance d and the square side changes to 2d, still the point charge can be imagined at the centre of a cube of side 2d.
Again the flux through one face of the cube will be 1/6 of the total electric flux due to the charge q.
Hence, the electric flux through the square will not change and it will remain the same i.e q/6ε
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