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JEE Main & Advanced Physics Semiconducting Devices Question Bank Digital Electronics

  • question_answer
    The following truth table corresponds to the logic gate [BHU 1994; CPMT 2000; J & K CET 2004]            A    0     0     1     1            B    0     1     0     1            X    0     1     1     1

    A)            NAND                                     

    B)            OR

    C)            AND                                         

    D)            XOR

    Correct Answer: B

    Solution :

                         For ?OR? gate \[X=A+B\]             i.e. \[0+0=0\], \[0+1=1\], \[1+0=1\], \[1+1=1\]


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