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NEET Sample Paper NEET Sample Test Paper-12

  • question_answer
    A coil of resistance\[10\Omega \] and an inductance 5 H is connected to a 100 volt battery. Then energy stored in the coil is

    A)  125 erg                        

    B)  125 J

    C)  250 erg                        

    D)  250 J

    Correct Answer: D

    Solution :

     \[U=\frac{1}{2}L{{i}^{2}}\Rightarrow U=\frac{1}{2}\times 5\times {{\left( \frac{100}{10} \right)}^{2}}=250\,J\]


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