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In figure the electric field using Gauss law the Formula `|vec(E)|=(q_("enc"))/(in_(0)|A|)` is applicable. In the formula. `in_(0)` is permittivity free space, A is the area of Gaussian surface and `q_("enc")` is charge enclosed by the Gaussion surface. This equation can be used in which of the following situation?

A

Only when the Gaussian surface is an equipotential surface

B

only when `|vecE|` is constant on the surface

C

only when the the Gaussian surface is an equipotential surface `|vecE|` is constant of the surface

D

for any choice of Gaussian surface

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The correct Answer is:
C
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