Physics - Semiconductors Question with Solution | TestHub

$\therefore$ There are two NOR gates, one NOT gate, and one NAND gate. $\therefore$ Output of NAND gate: $\overline{A\cdot B}$ Output of NOT and NOR Gate: $\overline{\overline{\mathrm{A}}+\mathrm{B}}$ Final output: $\overline{(\overline{\mathrm{A}\cdot \mathrm{B}})+(\overline{\overline{\mathrm{A}}+\mathrm{B}})}$ So, the output $\mathrm{Y}$ is 1 only if the input $\mathrm{A}$ and $\mathrm{B}$ is 1. $$\begin{array}{rl}& \mathrm{A}=1\\ & \mathrm{B}=1\\ & \mathrm{Y}=\overline{\overline{1\cdot 1}+\overline{1}+1}\\ & \mathrm{Y}=1\end{array}$$