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12th Class Physics Magnetism Question Bank MCQ - Magnetism and Matter

  • question_answer
    The angle of dip at a certain place where the horizontal and vertical components of the Earth's magnetic field are equal is:

    A) \[30{}^\circ \]                          

    B)             \[75{}^\circ \]      

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

    D)             \[45{}^\circ \]

    Correct Answer: D

    Solution :

    (d) \[45{}^\circ \] \[\tan \delta =\frac{{{B}_{V}}}{{{B}_{H}}}=\frac{{{B}_{H}}}{{{B}_{H}}}=1[\because \,{{B}_{H}}={{B}_{V}}(Given)]\] \[\therefore \delta =45{}^\circ \]


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