Physics · Semiconductor and Electronic Devices

JEE Main 2025 — 3 April, Morning Shift — Question 55

Choose the correct logic circuit for the given truth table having inputs $A$ and $B$ .

Answer: B

Option (1) $=(\overline{A+B}) \cdot A$

=(\bar{A}+\bar{B}) \cdot A \equiv 0

Option (2) $=(A+B) \cdot A$

A \cdot A+A \cdot B=A

Option (3) $(A+B) \cdot \bar{A}$

A \cdot \bar{A}+\bar{A} \cdot B=\bar{A} B

Option (4) $(A+B) \cdot(B)$

A \cdot B+B \cdot B=B

$\Rightarrow$ option 2 matches the truth table

Answer key and solution verified before publishing.

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