The output of the following combination is th | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The given circuit consists of two $NOR$ gates whose outputs are fed into an $OR$ gate. Let the inputs be $A$ and $B$. The output of the top $NOR$

Vedclass · Accepted Answer

$NOR$ gate

Vedclass · Answer

(D) The given circuit consists of two $NOR$ gates whose outputs are fed into an $OR$ gate. Let the inputs be $A$ and $B$. The output of the top $NOR$ gate is $C = \overline{A+B}$ and the output of the bottom $NOR$ gate is $D = \overline{A+B}$. These are fed into an $OR$ gate,so the final output is $Y = C + D = \overline{A+B} + \overline{A+B} = \overline{A+B}$.The truth table for this combination is:$A$$B$$C = \overline{A+B}$$D = \overline{A+B}$$Y = C + D$$0$$0$$1$$1$$1$$0$$1$$0$$0$$0$$1$$0$$0$$0$$0$$1$$1$$0$$0$$0$Comparing this with the truth table of standard logic gates,the output $Y$ is $1$ only when both $A$ and $B$ are $0$,which is the characteristic behavior of a $NOR$ gate.

The output of the following combination is the same as that of:

Similar Questions

$A$ truth table is given below. Which of the following logic gates corresponds to this truth table?
$A: 0, 1, 0, 1$
$B: 0, 0, 1, 1$
$Y: 1, 0, 0, 0$

If three logic gates are connected as shown in the figure,then the correct truth table of the circuit is

The output of an $OR$ gate is $1$:

The following figure shows a logic gate circuit with two inputs $A$ and $B$ and the output $Y.$ The voltage waveforms of $A, B$ and $Y$ are as given. The logic gate is

For a two-input $AND$ gate,the four entries are shown in the truth table. Identify the correct ones out of these ($A, B =$ input,$Y =$ output).
Entry $A$ $B$ $Y$
$1$ $0$ $1$ $0$
$2$ $1$ $0$ $0$
$3$ $1$ $1$ $1$
$4$ $0$ $0$ $1$

Vedclass Test Series

Exam Paper Generator

Online Exam Module