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

  • question_answer
    At a certain place, the horizontal component \[{{B}_{0}}\] and the vertical component \[{{V}_{0}}\] of the earth's magnetic field are equal in magnitude. The total intensity at the place will be [MP PMT 1999, 2003]

    A)            \[{{B}_{0}}\]                         

    B)            \[B_{0}^{2}\]

    C)            \[2{{B}_{0}}\]                       

    D)            \[\sqrt{2}{{B}_{0}}\]

    Correct Answer: D

    Solution :

               \[{{B}_{0}}={{V}_{0}}\]also total intensity \[B=\sqrt{B_{0}^{2}+V_{0}^{2}}\]             \[\Rightarrow B=\sqrt{2}{{B}_{0}}\]


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