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A charged oil drop is moving with velocity v1 .as it acquires an additional charge it moves up with velocity v2 in the same electric field it falls freely with velocity V in the absence of electric field the ratio of the charges before and after acquiring additional charge is

A charged oil drop is moving with velocity v1 .as it acquires an additional charge it moves up with velocity v2 in the same electric field it falls freely with velocity V in the absence of electric field the ratio of the charges before and after acquiring additional charge is

Grade:12

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