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12th Class Physics Electric Charges and Fields Question Bank Case Based (MCQs) - Electric Charges and Fields

  • question_answer
    The electric flux through a closed surface area S enclosing charge Q is \[\phi \]. If the surface area is doubled, then the flux is:

    A) \[2\phi \]                                   

    B) \[\phi /2\]

    C) \[\phi /4\]                                  

    D) \[\phi \]

    Correct Answer: D

    Solution :

    (d) \[\phi \] As flux is the total number of Lines passing through the surface, for a given charge, it is always the charge enclose\[Q/{{\varepsilon }_{0}}\]. If area is doubled, the flux remains the same.


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