Which one of the following is the Boolean expression of the NAND gate?
Correct answer: C. X = Ā.B̄
- A. X = A.B
- B. B X = A + B
- C. X = Ā.B̄
- D. X = Ā + B̄
Explanation
The Boolean expression given for a NAND gate is that of logical addition and it is opposite to the AND gate The Boolean algebra for AND gate is X=A.B So, the Boolean algebra for the NAND gate is: X=A.B
This question appeared on the UHS MDCAT 2016 paper, which you can sit online with every answer explained.
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