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JEE Main & Advanced Physics Semiconducting Devices JEE PYQ-Semiconducting Devices

  • question_answer
    Which logic gate with inputs A and B performs the same operation as that performed by the following circuit?       [JEE ONLINE 07-05-2012]

    A) NAND gate

    B) OR gate

    C) NOR gate

    D) AND gate

    Correct Answer: B

    Solution :

    [b] When either of A or B is 1 i.e. closed then lamp will glow.
    In this case. Truth table
    Inputs Out put
    A B Y
    0 0 0
    0 1 1
    1 0 1
    1 1 1
    This represents OR gate.


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