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Three concentric metallic spheres A, B a...

Three concentric metallic spheres A, B and C of radii 1m, 2m and 3m respectively are charged to 0.56 nC, 2.12 nC and 5.0 nC. Calculate the potentials of the spheres.

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(i) `=29.52V`
(ii) `27.06V`
(iii) `23.04V`
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