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12th Class Physics Magnetism Question Bank MCQ - Moving Charges and Magnetism

  • question_answer
    A current carrying circular loop of radius R is placed in the X-Y plane with centre at the origin. Half of the loop with x > 0 is now bent so that it now lies in the Y-Z plane.     [NCERT EXEMPLAR]

    A) The magnitude of magnetic moment now diminishes.

    B) The magnetic moment does not change.

    C) The magnitude of \[\overrightarrow{B}\] at (0, 0. z). z >> R increases.

    D) The magnitude of \[\overrightarrow{B}\] at (0, 0. z). z >> R is unchanged.

    Correct Answer: C

    Solution :

    (c) The magnitude of \[\overrightarrow{B}\] at (0. 0, z). z >> R increases.


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