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Statement of a problem № 3646

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A spherical liquid drop has a diameter of 2 mm and is given a charge of 2x10^(-15) C. (i) What is the potential at the surface of the drop? (ii) If two such drops coalesce to form a single drop, what is the potential at the surface of the drop so formed?

Solution:
A spherical liquid drop has a diameter of 2 mm and is given a charge of 2x10^(-1

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