CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2006

  • question_answer
    Identify the operation performed by the circuit given below:

    A)  NOT                                     

    B)  AND

    C)  OR                                        

    D)  NAND

    Correct Answer: B

    Solution :

    The output of the circuit is,                 \[y=\overline{\overline{A}+\overline{B}}\]                 \[y=\overline{\overline{A}}\,.\,\overline{\overline{B}}\]                 \[=\overline{A}\,.\,B\]  (\[\because \,\overline{A}=A\] and \[\overline{B}=B\]) which is the output of an AND gate.


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