Question

For a given surface the Gauss's law is stated as $\oint \vec{E}\cdot d\vec{A}=0$. From this we can conclude that

• A. E is necessarily zero on the surface
• B. $E$ is perpendicular to the surface at every point
• C. the total flux through the surface is zero
• D. the flux is only going out of the surface

Answer 1

Answer: (C)

$\oint \vec{E}\cdot d\vec{A}=0$, represents charge inside close surface is zero. Electric field as any point on the surface may be zero.