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JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Self Evaluation Test - Electric Chages and Fields

  • question_answer
    For a given surface the Gauss's law is stated as \[\oint{\vec{E}.dA=0.}\]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

    Correct Answer: C

    Solution :

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


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