Answer to Question #6892 in Electricity and Magnetism for Malyaj Sirothia

Question #6892

An oil drop of 12 excess electrons is held stationary under a constant electric field of 2.55 * 10^4 N/C in Millikan`s oil drop experiment. The density of the oil is 1.26 g/cm^(-3). Estimate the radius of the drop.

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