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BVP Medical BVP Medical Solved Paper-2002

  • question_answer
    A short magnetic needle is pivoted in a uniform magnetic field of strength 1 tesla, when another magnetic field of strength \[\sqrt{3}\]T is applied to the needle in a perpendicular directions. The needle deflects at an angle \[\theta \], when the value of \[\theta \] is :

    A)  \[60{}^\circ \]                                  

    B)  \[90{}^\circ \]

    C)  \[45{}^\circ \]                                  

    D)  \[30{}^\circ \]

    Correct Answer: A

    Solution :

                    Deflection produced in needle \[\tan \theta =\frac{{{B}_{2}}}{{{B}_{1}}}\] \[=\frac{\sqrt{3}}{1}=\sqrt{3}=\tan {{60}^{o}}\] \[\theta ={{60}^{o}}\]


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