Identify the logic operation carried out by t | vedclass

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(D) The given circuit consists of two $NAND$ gates acting as $NOT$ gates,followed by a $NAND$ gate. Let the inputs be $A$ and $B$. The output of the f

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$OR$

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(D) The given circuit consists of two $NAND$ gates acting as $NOT$ gates,followed by a $NAND$ gate. Let the inputs be $A$ and $B$. The output of the first $NAND$ gate is $\overline{A \cdot A} = \bar{A}$. The output of the second $NAND$ gate is $\overline{B \cdot B} = \bar{B}$. These outputs are fed into the final $NAND$ gate. The final output $Y$ is given by: $Y = \overline{\bar{A} \cdot \bar{B}}$ Using De Morgan's law,$\overline{\bar{A} \cdot \bar{B}} = \overline{\bar{A}} + \overline{\bar{B}} = A + B$. Thus,$Y = A + B$,which represents the $OR$ operation. Therefore,the correct option is $D$.

Identify the logic operation carried out by the following circuit.

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