Consider the logic circuit with inputs A, B, | vedclass

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

Question

(C) The output $Y$ of the given logic circuit is determined as follows:$1$. The input $A$ passes through a $NOT$ gate to become $\overline{A}$.$2$. Th

Vedclass · Accepted Answer

$7$

Vedclass · Answer

(C) The output $Y$ of the given logic circuit is determined as follows:$1$. The input $A$ passes through a $NOT$ gate to become $\overline{A}$.$2$. The inputs $\overline{A}$ and $B$ are fed into a $NAND$ gate, producing $\overline{\overline{A} \cdot B}$.$3$. The input $C$ passes through a $NOT$ gate to become $\overline{C}$.$4$. The outputs $\overline{\overline{A} \cdot B}$ and $\overline{C}$ are fed into a $NOR$ gate, resulting in $Y = \overline{(\overline{\overline{A} \cdot B}) + \overline{C}}$.$5$. Using De Morgan's theorem, $Y = \overline{(\overline{\overline{A} \cdot B})} \cdot \overline{(\overline{C})} = (\overline{A} \cdot B) \cdot C = \overline{A} \cdot B \cdot C$.$6$. The output $Y=1$ only when $\overline{A}=1, B=1, C=1$, which means $A=0, B=1, C=1$.$7$. There are $2^3 = 8$ total possible combinations for inputs $A, B, C$.$8$. Since $Y=1$ for only $1$ combination, the number of combinations for which $Y=0$ is $8 - 1 = 7$.

Consider the logic circuit with inputs $A, B, C$ and output $Y$. How many combinations of $A, B$ and $C$ give the output $Y=0$?

Similar Questions

The following combination of logic gates is equivalent to:

The Boolean equation of a logic gate is $Y = \bar{A} \cdot B + A \cdot \bar{B}$. Identify the logic gate and describe its construction using $OR$,$AND$,and $NOT$ gates.

The Boolean expression for the given combination of logic gates is

The Boolean equation $A + \bar{A} = .......$

$A$ typical integrated circuit $(IC)$ consisting of logic gates $\leq 1000$ is termed as

Vedclass Test Series

Exam Paper Generator

Online Exam Module