Question

The Boolean expression for the circuit in the given figure is

• A. $r=\overline{A}.B+C$
• B. $r=\overline{A}.(\overline{B}+\overline{C})$
• C. $r=\overline{A}.(B+\overline{C})$
• D. $r=\overline{A}.(B+C)$

Answer 1

The correct option is D $r=\overline{A}.(B+C)$

Input to AND gate are $\overline{A}$ & $(B+C)$
Therefore, output of AND gate
$Y=\overline{A}.(B+C)$