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NEET Sample Paper NEET Sample Test Paper-56

  • 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 magnitude of electric field at the same point is:

    A) \[E\]                 

    B) \[\frac{E}{4}\]     

    C) \[\frac{E}{2}\]              

    D) \[2E\]

    Correct Answer: C

    Solution :

    [c] If dipole rotated through an angle of \[{{90}^{{}^\circ }}\]about its perpendicular axis, then given point comes on equatorial line so, field become half of Previous value \[=\frac{E}{2}\]  


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