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Manipal Medical Manipal Medical Solved Paper-2011

  • question_answer
    An ideal choke of 10 H is joined in series with resistance of 5 0. and a battery of 5 V. The current in the circuit in 2 s after joining in ampere will be

    A)  \[{{e}^{-1}}\]            

    B)  \[1-{{e}^{-1}}\]

    C)  \[1-e\]           

    D)  \[e\]

    Correct Answer: B

    Solution :

     Time constant \[=\frac{L}{R}=\frac{10}{5}=2s\] ie, is 2 s, the current sizes to \[\left( 1-\frac{1}{e} \right)\] or \[(1-{{e}^{-1}})\] times.


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