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Thread: Questions on logic circuits?

  1. #1 Questions on logic circuits? 
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    Please anyone who can help me out with this question, help will be appreciated?
    a warning light is to glow when the mains switch is ON provided that either switches A and B or C and D are turned ON. Assuming that logics 1 and 0 are produced when a switch is closed and opened respectively, design a minimal logic circuit using NAND gates gates to produce a logic 1 signal when the light is ON.? Any help will be much appreciated


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  3. #2  
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    This looks like a homework problem, but this shows how various logic gates can be constructed using only the NAND.
    NAND logic - Wikipedia, the free encyclopedia


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