NEET Sample Paper NEET Sample Test Paper-34

  • question_answer
    Current in a coil changes at a constant rate of 2A in 50ms. A back-emf of 4V is induced in the coil. What is the self inductance of the coil:-

    A)  \[0.025\text{ }H\]           

    B)  \[0.10\text{ }H\]

    C)  \[0.40\text{ }H\]           

    D)  \[40\text{ }H\]

    Correct Answer: B

    Solution :

    \[e=L\frac{dI}{dt}\Rightarrow L=\frac{e\times dt}{dI}\]

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