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NEET Sample Paper NEET Sample Test Paper-2

  • question_answer
    . Select the output Y of the combination of gates shown below for inputs \[A=1,\] \[B=0,\]\[A=1,\]\[B=1\]and \[A=0\],\[B=0\] respectively

    A)  \[(001)\]              

    B)  \[(101)\]

    C)  \[(111)\]              

    D)  \[(100)\]

    Correct Answer: D

    Solution :

    By Boolean algebra, we have \[Y=A\,\overline{B}\] For understanding, suppose \[A=1\]and \[B=1\]then, output of \[{{G}_{1}},\] will be 0 and hence input \[{{G}_{2}}\] and \[{{G}_{3}}\]will \[(0,1)\] and \[(0,1)\], respectively. Then, output of \[{{G}_{2}}\] is 1 and output of \[{{G}_{3}}\]is also 1. These are in turn the imputs for \[{{G}_{4}}\] (i.e.,1,1) that gives the output of \[{{G}_{4}}\] is 0.


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