If 'a' and 'b' are the inputs and 'O' is the output, then which of the…
2017
If 'a' and 'b' are the inputs and 'O' is the output, then which of the following represents output of NAND gate?
- A.
O=a
- B.
O=(a.b)'
- C.
O=ab
- D.
O=(a+b)'
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Correct answer: B
The correct option is B. A NAND gate is a combination of an AND gate followed by a NOT gate. The AND operation multiplies the inputs (a . b), and the NOT operation inverts the result. Therefore, the Boolean expression for the output $O$ is O = (a . b)'.
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