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    Question

    Which statement about the properties of magnetic lines

    of force is NOT correct?
    A The magnetic lines of force are open curves. Correct Answer Incorrect Answer
    B Two lines of force never intersect each other. Correct Answer Incorrect Answer
    C If the lines of force are crowded, the field is strong. Correct Answer Incorrect Answer
    D If the lines of force are parallel and equidistant, the magnetic field is uniform. Correct Answer Incorrect Answer

    Solution

    Magnetic lines of force are closed curves that exit a magnet from its north pole and re-enter at the south pole, continuing through the magnet from south to north. This property emphasizes the continuous nature of magnetic fields, contradicting the incorrect assertion that they are open curves.

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