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NEET Sample Paper NEET Sample Test Paper-76

  • question_answer
    What will be the time constant for the given circuit?

    A)  RC                              

    B)  2.5 RC

    C)  1.2 RC            

    D)  6 RC

    Correct Answer: C

    Solution :

    Time constant in R-C circuit is given by \[\operatorname{l} -RC\] Equivalent capacitance \[=\,\,\,\frac{2R\times 3R}{2R+3R}=\frac{6R}{5}\] \[\therefore \,\,\,\,\,l=\frac{6R}{5}\times C=\frac{6RC}{5}=1.2\,RC\]


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