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(D) The circuit consists of two $OR$ gates whose outputs are fed into a $NAND$ gate. Let the inputs be $A$ and $B$. The output of both $OR$ gates is $

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$NOR$

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(D) The circuit consists of two $OR$ gates whose outputs are fed into a $NAND$ gate. Let the inputs be $A$ and $B$. The output of both $OR$ gates is $X = A + B$. These are the inputs to the $NAND$ gate. The final output $Y$ is given by $Y = \overline{X \cdot X} = \overline{X} = \overline{A + B}$. This is the Boolean expression for a $NOR$ gate. The truth table is as follows:$A$$B$$X = A + B$$Y = \overline{X \cdot X}$$0$$0$$0$$1$$0$$1$$1$$0$$1$$0$$1$$0$$1$$1$$1$$0$

For the combination of logic gates shown in the figure,the equivalent logic gate is

Similar Questions

The truth table given below is for which gate?
$A: 0, 0, 1, 1$
$B: 0, 1, 0, 1$
$C: 1, 1, 1, 0$

The output from a $NAND$ gate having inputs $A$ and $B$ given below will be:

The truth table given below represents which logic gate?
$A$ $B$ $Y$
$0$ $0$ $0$
$0$ $1$ $1$
$1$ $0$ $1$
$1$ $1$ $1$

The resultant gate and its Boolean expression in the given circuit is

Which of the following is the symbol for a $NAND$ gate?

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