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Manipal Medical Manipal Medical Solved Paper-2009

  • question_answer
    A long solenoid of length L has a mean diameter D. It has n layers of winding of N turns each. If it carries a currenti, the magnetic field at its centre will be

    A)  proportional to D

    B)  inversely proportional to D

    C)  independent of D

    D)  proportional to L

    Correct Answer: C

    Solution :

    Magnetic field due to solenoid is independent of diameter (Because\[B={{\mu }_{0}}ni\]).


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