Write the truth table for circuit given in Fig.below consisting of NOR gates and identify the logic operation (OR, AND and NOT) which this circuit is performing.
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The Boolean expression for the given circuit is `y^(')=bar(A+B)=barA+barB` `y=bar(y^('))=bar(barA.barB)=bar(barA)+bar(barB)=A+B` It means OR gate is created. Thruth table of this gate is shown in the adjoining table Fig.
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