Physics - Semiconductors Question with Solution | TestHub

Behaves like a NOT gate so boolean equation will be 

$\mathrm{y}=\overline{\overline{\mathrm{A}}+\overline{\mathrm{B}}+\overline{\mathrm{C}}}$

$\mathrm{y}=\mathrm{A}·\mathrm{B}·\mathrm{C}$

Whole arrangement behaves like an $\mathrm{AND}$ gate