Question

The correct truth table for the following logic circuit is :

• A.
• B.
• C.
• D.

Answer 1

Answer: (B)

Answer 2

The circuit consists of an AND gate, a NOT gate, and an OR gate. The output $Y$ is determined as follows:

1. The output of the AND gate is $A \cdot B$.
2. The output of the NOT gate is $\overline{A \cdot B}$.
3. The output $Y$ is the OR of $\overline{A \cdot B}$ and $B$:

$Y = \overline{A \cdot B} + B$

Step-by-Step Evaluation of Truth Table:

A	B	A · B	&overline;A · B	Y = &overline;A · B + B
0	0	0	1	1
0	1	0	1	1
1	0	0	1	1
1	1	1	0	1

Thus, the correct truth table is represented in Option (2).