Physics - Semiconductors Question with Solution | TestHub

The Boolean expression for a NAND gate is $Y=\overline{A\cdot B}$.

For $A=1$, $B=0$, $Y=\overline{1\cdot 0}=\overline{0}=1$

For $A=1$, $B=1$, $Y=\overline{1\cdot 1}=\overline{1}=0$

For $A=0$, $B=0$, $Y=\overline{0\cdot 0}=\overline{0}=1$

For $A=0$, $B=1$, $Y=\overline{0\cdot 1}=\overline{0}=1$

The output is $0$ when $A=1$ and $B=1$.

Answer: $A=1$, $B=1$