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A uniformly charged disk of radius 10 cm carries a uniform charge density of 3nC/m^2 (a)...

A uniformly charged disk of radius 10 cm carries a uniform charge density of 3nC/m^2 (a) Calculate the electric potential (relative to zero at infinity) at a point A, situated on the symmetry axis of the disk that is perpendicular to the disk face, at a distance of 1 mm from the disk. (b) Calculate the electric potential difference ΔV between point A and another point on the same axis at a distance 2 mm from the disk. (c) Compare your results with what you would have obtained by considering the disk as an infinite charged sheet.

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