A soap bubble is slowly given a charge then a) the radius increases slowlyb) the radius decreases slowlyc) the air pressure drops inside the bubbled) the air pressure inside the bubble increases

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a, c are correct

a, d are correct

b, c are correct

b, d are correct

answer is A.

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Detailed Solution

Radius of bubble increases due to repulsion of charges. ΔP=2TR and ΔP∝1R If radius increases then pressure decreases

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