The electric flux through a closed surface area $S$ enclosing charge ${\cal Q}$ is $\phi $. If the surface area is doubled, then the flux is

JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES

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Understanding +4 | -1

The electric flux through a closed surface area

S

enclosing charge

{\cal Q}

\phi

. If the surface area is doubled, then the flux is

View answer and explanation

Correct option: A

2\phi

Option D (

\phi

) is incorrect. The electric flux through a closed surface depends only on the enclosed charge, not the surface area. Since the enclosed charge remains the same, the flux remains the same.

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