CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2009

  • question_answer
    In the given circuit diagram the current through the battery and the charge on the capacitor respectively in steady state are

    A)  1A and\[3\mu C\]     

    B)         17 A and \[0\mu C\]

    C)  \[\frac{6}{7}A\] and\[\frac{12}{7}\mu C\] 

    D)     6 A and\[0\mu C\]

    E)  \[11A\] and\[3\mu C\]

    Correct Answer: E

    Solution :

    In steady state current through the branch having capacitor is zero. \[\therefore \]  \[\frac{1}{R}=\frac{1}{1}+\frac{1}{2}+\frac{1}{3}\] \[\frac{1}{R}=\frac{6+3+2}{6}\]                 \[R=\frac{6}{11}\] As           \[V=iR\] \[\therefore \]  \[6=i\times \frac{6}{11}\] Current through the battery \[i=11\text{ }A\] Charge on the capacitor \[q=CV\] \[\Rightarrow \]               \[q=0.5\times {{10}^{-6}}\times 6\] \[q=3\mu C\]


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