8. A cube whose each side is x, a point charge q is placed at a distance x 2 just above the centre. The electric flux associated with the cube will be: (a) q/€. (b)-q/2€. (c)q/4€. (d) qe.
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A point charge q is placed at a distance a/2 directly above the centre of a square of side a. The electric flux through the square is q/6ε0. Explanation: An imaginary cube can be made by considering charge q at the centre and given square is one of its face.
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