Physics - Semiconductors Question with Solution | TestHub

A NOR gate is a combination of an OR gate followed by a NOT gate.

The Boolean expression for an OR gate with inputs $A$ and $B$ is $Y^{\prime }=A+B$.

Passing this output through a NOT gate gives the final output $Y=\overline{Y^{\prime }}$.

Therefore, the Boolean expression for a NOR gate is $Y=\overline{A+B}$.

Answer: $Y=\overline{A+B}$