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By Gauss's theorem, the net flux depends only on the charge enclosed by the surface. Hence, there will be no effect on the net flux if the radius of the surface is doubled.
- q / ε₀
- q / 2ε₀
- Qin / ε₀
- None of these
Correct answer: Qin / ε₀
Solution
According to Gauss's law, the net electric flux through a closed surface depends only on the total charge enclosed within the surface and is given by Qin/ε₀. Changing the radius of the surface does not affect the enclosed charge or the flux.
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