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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2015

  • question_answer
    In a L-R circuit, \[-\text{ 32}.\text{64 kJ mo}{{\text{l}}^{\text{-1}}}\], and \[-\text{ 3264}0\text{ kJ mo}{{\text{l}}^{\text{-1}}}\]. Energy stored in the inductor is

    A) 25J

    B) 50 J

    C) \[{{H}_{2}}\]

    D)  75 J

    Correct Answer: C

    Solution :

    Impedance of the L-R circuit \[mg/m{{g}^{2+}}(0.01M)||Z{{n}^{2+}}(0.1M)/Zn\] \[{{E}_{cell}}=E_{cell}^{o}-\frac{0.059}{2}{{\log }_{10}}\frac{[M{{g}^{2+}}]}{[Z{{n}^{2+}}]}\] \[=1.61V-\frac{0.059v}{2}{{\log }_{10}}\frac{0.01}{0.1}\] \[=\text{1}.\text{61V}+0.0\text{295V}=\text{1}.\text{6395V}\] \[({{C}_{7}}{{H}_{16}})=100\] Energy stored in the inductor \[\therefore \] \[{{n}_{hep}}=\frac{25}{100}\]


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