The logic circuit shown below has the input w | vedclass

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

Question

(C) The given circuit consists of two $NOT$ gates,one $NOR$ gate,and one $NOT$ gate at the output. Let the inputs be $A$ and $B$. The outputs of the f

Vedclass · Accepted Answer

Vedclass · Answer

(C) The given circuit consists of two $NOT$ gates,one $NOR$ gate,and one $NOT$ gate at the output. Let the inputs be $A$ and $B$. The outputs of the first two $NOT$ gates are $\overline{A}$ and $\overline{B}$. These are fed into a $NOR$ gate,so the intermediate output $x$ is given by $x = \overline{\overline{A} + \overline{B}}$. By De Morgan's theorem,$\overline{\overline{A} + \overline{B}} = \overline{\overline{A}} \cdot \overline{\overline{B}} = A \cdot B$. The final output $y$ is the inversion of $x$,so $y = \overline{x} = \overline{A \cdot B}$. This is the Boolean expression for a $NAND$ gate. The truth table for a $NAND$ gate is:$A$$B$$y$$0$$0$$1$$0$$1$$1$$1$$0$$1$$1$$1$$0$Based on the input waveforms,the output $y$ will be $0$ only when both $A$ and $B$ are $1$. Otherwise,it will be $1$.

The logic circuit shown below has the input waveforms $A$ and $B$ as shown. Pick out the correct output waveform $:-$

Similar Questions

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 $A$ $B$ $Y$
$1$ $0$ $1$ $0$
$2$ $1$ $0$ $0$
$3$ $1$ $1$ $1$
$4$ $0$ $0$ $1$

The Boolean expression for the given combination of logic gates is

Which of the following logic gates is called a Universal gate?

The output $(X)$ of the logic circuit shown in the figure will be:

Digital signals are characterized by which of the following statements?
$(i)$ They do not provide continuous values.
$(ii)$ They represent values in discrete steps.
$(iii)$ They can be represented by a binary system.
$(iv)$ They represent both binary and decimal systems.

Vedclass Test Series

Exam Paper Generator

Online Exam Module