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CMC Medical CMC-Medical VELLORE Solved Paper-2011

  • question_answer
    Magnetic field intensity due to a dipole varies as \[{{d}^{n}};\] \[d=\]distance of observation point from dipole, where n is equal to

    A)  2                                            

    B)  -2

    C)  3                                            

    D)  -3

    E)  None of these

    Correct Answer: D

    Solution :

                    Due to a magnetic dipole, \[B\propto \frac{1}{{{d}^{3}}}\]\[n=-\,3\]


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