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  4. The output Y of the logic circuit shown in figure is best represented as

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Q. The output $Y$ of the logic circuit shown in figure is best represented asPhysics Question Image

VITEEEVITEEE 2014Semiconductor Electronics: Materials Devices and Simple Circuits

Solution:

At logic gate-l, the Boolean expression is
$\bar{B} \cdot C=Y'$
At logic gate-II, the Boolean expression is
$A+(\bar{B} \cdot \bar{C})=Y''$
At logic gate-III, the Boolean expression is
$\overline{A+\bar{B} \cdot C}=Y$