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17. A and C are concentric conducting sp...

17. A and C are concentric conducting spherical shells of radius a and c respectively. A is surrounded by a concentric dielectric of inner radius a, outer radius b and dielectric constant k. If sphere A is given a charge Q. the potential at the outer surface of the dielectric is. 48 kb και πες k(b-a) (3) 4 €, b (4) None of these SPAn non

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