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JEE Main & Advanced Physics Semiconducting Devices Question Bank Digital Electronics

  • question_answer
    A truth table is given below. Which of the following has this type of truth table [CBSE PMT 1996; UPSEAT 2002]            A   0     1     0     1            B   0     0     1     1            y   1     0     0     0

    A)            XOR gate                               

    B)            NOR gate

    C)            AND gate                               

    D)            OR gate

    Correct Answer: B

    Solution :

                       In ?NOR? gate \[Y=\overline{A+B}\]                    i.e. \[\overline{0+0}=\overline{0}=1\], \[\overline{1+0}=\overline{1}=0\]            \[\overline{0+1}=\overline{1}=0\], \[\overline{1+1}=\overline{1}=0\]


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