Physics - Semiconductors Question with Solution | TestHub

The Boolean expression $A+B=Y$ represents the logical OR operation.

In an OR operation, the output $Y$ is true (exists) if input $A$ is true, or input $B$ is true, or both inputs $A$ and $B$ are true.

Thus, $Y$ exists when $A$ exists, or $B$ exists, or both $A$ and $B$ exist.

Answer: $Y$ exists when $A$ exists or $B$ exists or both $A$ and $B$ exist