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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2009

  • question_answer
        Potential at appoint at a distance r from the centre of uniformly charged sphere of radius a \[a(<r)\] is proportional to

    A)  \[{{a}^{3}}\]                                     

    B)  r

    C)  \[\frac{1}{r}\]                                  

    D)  \[\frac{1}{{{a}^{3}}}\]

    Correct Answer: C

    Solution :

                    According to formula\[V=\frac{q}{4\pi {{\varepsilon }_{0}}r}\]\[\Rightarrow \]\[V\propto \frac{1}{r}\]


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