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JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Electric Dipole

  • question_answer
    The electric potential at a point on the axis of an electric dipole depends on the distance \[r\] of the point from the dipole as                                                      [CPMT 1982; UPSEAT 2001 MP PMT 1996, 2002; MP PET 2001, 05]

    A)                    \[\propto \frac{1}{r}\]

    B)                                      \[\propto \frac{1}{{{r}^{2}}}\]

    C)                    \[\propto r\]

    D)                                      \[\propto \frac{1}{{{r}^{3}}}\]

    Correct Answer: B

    Solution :

               Electric potential due to dipole in it's general position is given by \[V=\frac{k.p\cos \theta }{{{r}^{2}}}\] Þ \[V\propto \frac{1}{{{r}^{2}}}\]


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