J & K CET Engineering J and K - CET Engineering Solved Paper-2013

  • question_answer
    A bar magnet of pole strength \[10\text{ }Am\]is cut into two equal parts breadthwise. The pole strength of each magnet is

    A)  \[5\text{ }Am\]

    B) \[~10\text{ }Am\]

    C)  \[15\text{ }Am\]          

    D)  \[20\text{ }Am\]

    Correct Answer: A

    Solution :

    When magnet is cut into equal parts, area of cross-section becomes half. hence. Pole strength becomes half.


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