MCQ
For the logic circuit shown, the truth table is :
  • A
    $\begin{array}{lll}\text {A} & \text {B} & \text {Y} \\ 0 & 0 & 1 \\ 0 & 1 & 0 \\ 1 & 0 & 0 \\ 1 & 1 & 0\end{array}$
  • $\begin{array}{lll}\text {A} & \text {B} & \text {Y} \\ 0 & 0 & 0 \\ 0 & 1 & 0 \\ 1 & 0 & 0 \\ 1 & 1 & 1\end{array}$
  • C
    $\begin{array}{lll}\text {A} & \text {B} & \text {Y} \\ 0 & 0 & 0 \\ 0 & 1 & 1 \\ 1 & 0 & 1 \\ 1 & 1 & 1\end{array}$
  • D
    $\begin{array}{lll}\text {A} & \text {B} & \text {Y} \\ 0 & 0 & 1 \\ 0 & 1 & 1 \\ 1 & 0 & 1 \\ 1 & 1 & 0\end{array}$

Answer

Correct option: B.
$\begin{array}{lll}\text {A} & \text {B} & \text {Y} \\ 0 & 0 & 0 \\ 0 & 1 & 0 \\ 1 & 0 & 0 \\ 1 & 1 & 1\end{array}$
b
$Y=\overline{\bar{A}+\bar{B}}=\overline{\bar{A}} \cdot \overline{\bar{B}}=A \cdot B=$ $AND$ gate

$\begin{array}{lll}\text {A} & \text {B} & \text {Y} \\ 0 & 0 & 0 \\ 0 & 1 & 0 \\ 1 & 0 & 0 \\ 1 & 1 & 1\end{array}$

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