Question

3)A small charged ball is inserted into a balloon. The balloon is then blown up slowly. Describe how the flux through the balloon’s surface changes as the balloon is blown up. Consider both the total flux and the flux per unit surface area of the balloon

Answer 1

According to gauss law electric flux passing through a closed surface is given by -

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Where q = charge inside closed surface

So electric flux does not depends on area

But when area increases that flux per unit area will decrease.