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  3. 12th Class
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  5. Semiconducting Devices

12th Class Physics Semiconducting Devices Question Bank Semiconducting Devices Conceptual Problems

  • question_answer
    Give the symbol, and the truth table, of each of the two logic gates, obtained by using the two circuits, shown below.   

    Answer:

                        (a) The circuit of Fig. (a) represents OR gate                                         Logic symbol of OR gate. Truth table of OR gate
    Input A Input B Output \[\Upsilon \]
    0 0 0
    0 1 1
    1 0 1
    1 1 1
                         (b) The circuit of Fig. (b) represents AND gate. Logic symbol of AND gate. Truth table of AND gate
    Input A Input B Output \[\Upsilon \]
    0 0 0
    0 1 0
    1 0 0
    1 1 1


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