NEET NEET SOLVED PAPER 2015 (C)

  • question_answer
    Which logic gate is represented by the following combination of logic gates?                      

    A)  OR                        

    B)  NAND 

    C)  AND                     

    D)  NOR

    Correct Answer: C

    Solution :

    The truth table for the given circuit is
    A B \[{{\mathbf{y}}_{\mathbf{1}}}\] \[{{\mathbf{y}}_{\mathbf{2}}}\] \[\mathbf{y=}\overset{\mathbf{\_\_\_\_\_\_\_\_}}{\mathop{{{\mathbf{y}}_{\mathbf{1}}}\mathbf{+}{{\mathbf{y}}_{\mathbf{2}}}}}\,\]
    0 0 1 1 0
    0 1 1 0 0
    1 0 0 1 0
    d1 1 0 0 1
    The truth table shows that both the inputs are high, then we are getting high value of output otherwise zero. Hence, the combination represents AND gate.


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