JEE Main & Advanced Physics Magnetic Effects of Current / करंट का चुंबकीय प्रभाव Question Bank Graphical Questions

  • question_answer
    A long thin hollow metallic cylinder of radius 'R' has a current i ampere. The magnetic induction 'B'-away from the axis at a distance r from the axis varies as shown in

    A)                          

    B)                  

    C)                          

    D)                  

    Correct Answer: A

    Solution :

               Magnetic field inside the hollow metallic cylinder \[{{B}_{in}}=0,\]and magnetic field outside it \[{{B}_{out}}\propto \frac{1}{r}\]


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