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JEE Main & Advanced Sample Paper JEE Main Sample Paper-42

  • question_answer
    For the given combination of gates, if the logic states of inputs A, B, C are as follows A = B = C = 0 and A = 5 = 1, C = 0, then the logic states of output D are

    A)  0, 0                            

    B)  0, 1

    C)  1, 0                            

    D)  1, 1

    Correct Answer: D

    Solution :

    The output D for the given combination \[D=\overline{(A+B).C}=\overline{(A+B)}+\overline{C}\] If A = B = C = 0 then \[D=\overline{(0+0)}+=\overline{0}=\overline{0}+\overline{0}=1+1=1\] If \[A=B=1,C=0\]then \[D=\overline{(1+1)}+\overline{0}=\overline{1}+\overline{0}=0+1=1\]


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