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  3. 12th Class
  4. Physics
  5. Magnetism

12th Class Physics Magnetism Question Bank Case Based (MCQs) - Moving Charges and Magnetism

  • question_answer
    The magnitude of the magnetic field inside a long solenoid is increased by:

    A) decreasing its radius

    B)             decreasing the current through it

    C)             increasing its area of cross-section

    D)             introducing a medium of higher permeability

    Correct Answer: D

    Solution :

    (d) introducing a medium of higher permeability.


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