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JEE Main & Advanced Physics Magnetism Question Bank Earth's Magnetism

  • question_answer
    The angle of dip at a place is 60°. At this place the total intensity of earth's magnetic field is 0.64 units. The horizontal intensity of earth's magnetic field at this place is [MP PET 1984]

    A)            1.28 units                               

    B)            0.64 units

    C)            0.16 units                               

    D)            0.32 units

    Correct Answer: D

    Solution :

               \[{{B}_{H}}=B\cos \varphi \]\[=0.64\times \cos {{60}^{o}}=0.64\times \frac{1}{2}=0.32\]units


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