Physics - Semiconductors Question with Solution | TestHub

The output of an AND gate with inputs $A$ and $B$ is given by $Y^{\prime }=A\cdot B$.

This output is then fed into a NOT gate in series. The NOT gate inverts the input signal.

Therefore, the final output $Y$ is the complement of $Y^{\prime }$, which is $Y=\overline{A\cdot B}$.

This combination of an AND gate followed by a NOT gate is known as a NAND gate.

Answer: $\overline{A\cdot B}$