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NEET-XII-Physics

14: Semiconductor Electronics: Materials Devices and Simple Circuits

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  • #15
    You are given the two circuits as shown in Fig. 14.44. Show that circuit (a) acts as (b) acts as AND gate.


    Ans : null (a) A and B are the inputs and Y is the output of the given circuit. The left half of the given figure acts as the N


    Hence, the output of the N OR Gate =

    This will be the input for the NOT Gate. Its output will be = A + B

    ∴Y = A + B

    Hence, this circuit functions as an OR Gate.
    (b) A and B are the inputs and Y is the output of the given circuit. It can be observed from the following figure that the inputs of the right half N


    Hence, the output of the given circuit can be written as:



    Hence, this circuit functions as an AND Gate.
  • #15-a
    acts as
    Ans : A and B are the inputs and Y is the output of the given circuit. The left half of the given figure acts as the N


    Hence, the output of the N OR Gate =

    This will be the input for the NOT Gate. Its output will be = A + B

    ∴Y = A + B

    Hence, this circuit functions as an OR Gate.
  • #15-b
    acts as AND gate.


    Ans : A and B are the inputs and Y is the output of the given circuit. It can be observed from the following figure that the inputs of the right half N


    Hence, the output of the given circuit can be written as:



    Hence, this circuit functions as an AND Gate.