JEE Main & Advanced Physics Electro Magnetic Induction Question Bank Static EMI

  • question_answer
    A solenoid of length l metre has self-inductance L henry. If number of turns are doubled, its self inductance [MP PMT 2001]

    A)            Remains same                     

    B)            Becomes 2L henry

    C)            Becomes 4L henry             

    D)            Becomes \[\frac{L}{\sqrt{2}}\] henry

    Correct Answer: C

    Solution :

               \[L\propto {{N}^{2}}\]


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