PhysicsNEET 2024Logic gates

Semiconductor Electronics

A logic circuit provides the output $Y$ as per the following truth table:

A	B	Y
0	0	1
0	1	0
1	0	1
1	1	0

The expression for the output $Y$ is:

A. $A \cdot B + \overset{ˉ}{A}$
B. $\overset{ˉ}{B}$ ✓
C. $B$
D. $\overset{ˉ}{A} \cdot B + A$

Solution

The output is 1 exactly when $B = 0$ , regardless of $A$ — the table is that of $\overset{ˉ}{B}$ .

Save for spaced revision (free account)

More from this chapter in past papers

The output (Y) of the given logic implementation is similar to the output of a/an gate.…NEET 2025
The output (Y) of the given logic gate circuit is similar to the output of a/an:…NEET 2024
For the logic circuit shown, the truth table is: ![Question 42 as printed in the NEET…NEET 2023
The truth table for the given logic circuit is: ![Question 45 as printed in the NEET 2022…NEET 2022
For the given circuit, the input digital signals are applied at the terminals A…NEET 2021
In the logic circuit shown, inputs A and B are each first passed through a NOT gate…NEET 2020

From Physics › Semiconductor Electronics › Logic gates — lectures, notes and every past question on it.

Last revised 7 Sept 2026. Found a mistake? Tell us — corrections are the fastest thing we act on.

ShareWhatsApp Telegram