Physics - Semiconductors Question with Solution | TestHub

Output of upper AND gate $=\overline{\mathrm{A}}\mathrm{B}$ Output of lower AND gate $=A\bar{B}$ $\therefore$ Output of OR gate, $\mathrm{Y}=\mathrm{A}\overline{\mathrm{B}}+\mathrm{B}\overline{\mathrm{A}}$ This is boolean expression for XOR gate.