The output $W$ for the given logic circuit is:

Which of the following is an inverter gate?

Two logic gates are connected as shown in the figure. If the inputs are $A=1$ and $B=0$, then the values of $y_1$ and $y_2$ respectively are

For the logic circuit shown in the figure,the Boolean expression is:

$A$ combination of logic gates is as shown in the figure. $P$,$Q$,$R$,and $S$ are the inputs and $X$,$Y$,and $Z$ are outputs. When inputs $P$ and $R$ are 'low' $(0)$ and $Q$ and $S$ are 'high' $(1)$,the outputs $X$,$Y$,and $Z$ are respectively:

The circuit diagram shown here corresponds to which logic gate?