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(A) Let the inputs be $A$ and $B$.$1$. The first gate is a $NOR$ gate,so its output is $X = \overline{A+B}$.$2$. The second gate is a $NAND$ gate with

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$NOR$ gate

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(A) Let the inputs be $A$ and $B$.$1$. The first gate is a $NOR$ gate,so its output is $X = \overline{A+B}$.$2$. The second gate is a $NAND$ gate with both inputs tied together. $A$ $NAND$ gate with tied inputs acts as a $NOT$ gate. Thus,the output of the $NAND$ gate is $Z = \overline{X \cdot X} = \overline{X}$.$3$. Substituting $X = \overline{A+B}$ into $Z$,we get $Z = \overline{\overline{A+B}} = A+B$.$4$. The third gate is a $NOT$ gate,so its final output is $Y = \overline{Z} = \overline{A+B}$.$5$. The expression $\overline{A+B}$ represents a $NOR$ gate.Therefore,the circuit is equivalent to a $NOR$ gate.

The given logic circuit is equivalent to which of the following gates?

Similar Questions

Two inputs of a $NAND$ gate are shorted. This gate is equivalent to

The figure shows two $NAND$ gates followed by a $NOR$ gate. The system is equivalent to the following logic gate:

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

Which of the following gates corresponds to the truth table given below?

$A$ $B$ $Y$

$0$ $0$ $1$

$0$ $1$ $1$

$1$ $0$ $1$

$1$ $1$ $0$

Identify the logic operation carried out by the given circuit.

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