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NEET Sample Paper NEET Sample Test Paper-75

  • question_answer
    A charge q is enclosed by a Gaussian spherical surface of radius R. If the radius is doubled then outward electric flux will

    A)  be reduced to half         

    B)  increase four times

    C)  remain same                

    D)  be  doubled

    Correct Answer: C

    Solution :

    As given in the question that, charge q is enclosed by a Gaussian spherical surface of radius R. The radius R become as 2R. Consider the electric flux may be given as, \[{{\phi }_{E}}=\frac{{{q}_{in}}}{{{\varepsilon }_{0}}}\] So, electric flux depends only on the charge enclosed by the surface not on the radius R. So, electric flux will remain same.


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