An AND gate will function as OR if________________?
Correct answer: D. all the inputs and outputs are complemented
- A. all the inputs to the gates are "1"
- B. all the inputs are '0'
- C. either of the inputs is "1"
- D. all the inputs and outputs are complemented
Explanation
By De Morgan's theorem, complementing both the inputs and the output of an AND operation gives OR: (A'B')' = A + B. Therefore all inputs and the output must be complemented.
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