A charge Q is placed at a distance a/2, above the centre of a horizont – InterviewSolution

1.	A charge Q is placed at a distance a/2, above the centre of a horizontal, square surface of edge a as shown in figure (30-E1). Find the flux of the electric field through the square surface.
Answer» Given – A charge is placed o a plain surface with area = a^2, about a/2 from its centre. Assumption : let us assume that the given plain forms a surface of an imaginary cube. Then the charge is found to be at the centre of the cube. Hence flux through the surface = Q/ε₀ x 1/6 = Q/6ε₀

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