WB JEE Medical WB JEE Medical Solved Paper-2007

  • question_answer
    A point charge + q is placed at the midpoint of a cube of side a. The electric flux emerging from the cube is

    A)  zero                                     

    B)  \[\frac{3q{{a}^{2}}}{{{\varepsilon }_{0}}}\]

    C)  \[\frac{q}{{{\varepsilon }_{0}}}\]                                            

    D)  \[\frac{{{\varepsilon }_{0}}}{4q{{a}^{2}}}\]

    Correct Answer: C

    Solution :

                     Total electric flux emerging from the cube is \[\frac{q}{{{\varepsilon }_{0}}}.\]


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