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NEET Sample Paper NEET Sample Test Paper-60

  • question_answer
    A long solenoid has 1000 turns. When a current of 4A flows through it, the magnetic flux linked with each turn of the solenoid is\[4\times {{10}^{-3}}\,Wb\]. The self-inductance of the solenoid is:

    A) 4H    

    B)               3H    

    C) 2H                   

    D) 1H

    Correct Answer: D

    Solution :

    [d] \[\phi \,(1\,turn)=4\times {{10}^{-3}}\] \[\phi \,(1000\,turn)=4\times {{10}^{-3}}\times {{10}^{-3}}\] \[=4Wb\] \[\phi =LI\] \[4=L\times 4\] \[L\times 1\,Henry\]


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