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AMU Medical AMU Solved Paper-1998

  • question_answer
    A hemispherical surface of the radius R is placed in a uniform electric field of strength E parallel to axis of the hemisphere. The electric flux through the curved surface of the hemisphere is

    A)  zero              

    B)  \[3\pi {{R}^{2}}E\]

    C)  \[2\pi {{R}^{2}}E\]           

    D)  \[\pi {{R}^{2}}E\]

    Correct Answer: C

    Solution :

    : Flux\[\phi =E(dS)cos\theta \] \[=E(2\pi {{R}^{2}})\cos 0{}^\circ =2\pi {{R}^{2}}E\]


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