$1000$ small water drops each of radius $r$ and charge $q$ coalesce together to form one spherical drop. The potential of the big drop is larger than that of the smaller drop by a factor of
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(b) ${V_{Big}} = {n^{2/3}}{v_{small}} = {(1000)^{2/3}}{v_{small}} = 100\,{v_{small}}$
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