For a given surface, the Gauss' law is stated as \( \oint E \cdot d s=0 \). From this we can con...

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For a given surface, the Gauss' law is stated as \( \oint E \cdot d s=0 \). 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.
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