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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2010

  • question_answer
    The electric field due to an electric dipole at a distance r from its centre in axial position is E. If the dipole is rotated through an angle of \[90{}^\circ \] about its perpendicular axis, the electric field at the same point will be

    A)  E                                            

    B)  \[\frac{E}{4}\]

    C)  \[\frac{E}{2}\]                  

    D)         \[2E\]

    Correct Answer: C

    Solution :

    When the dipole is rotated through an angle of \[{{90}^{o}}\] about its perpendicular axis then given point comes out to be on equator. So field will become\[\frac{E}{2}\]at the given point.


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