Physics - Semiconductors Question with Solution | TestHub

$Y_1=\overline{A+B}$

$Y_2=\overline{Y_1+Y_1}=\overline{Y_1}=\overline{\overline{A+B}}=A+B$

$Y=\overline{Y_2}=\overline{A+B}$

The given electrical network becomes equivalent to NOR gate.