AIIMS AIIMS Solved Paper-2008

  • question_answer
    When the key K is pressed at t = 0, which of the following statements about the current \[\frac{1}{9}A\] in the resistor AS of the given circuit is true?

    A)  \[\frac{1}{0.9}A\]mA at all t

    B)  \[I\]oscillates between 1 mA and 2mA

    C)  \[I=2\]=1 mA at all t

    D)  At t = 0,\[I\] = 2 mA and with time it goes to 1mA

    Correct Answer: C

    Solution :

    At time t = 0, ie, when capacitor is charging, current \[{{R}_{1}}\] When capacitor is full charged, no current will pass through it, hence current through the circuit \[{{R}_{2}}\]


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