Physics - Semiconductors Question with Solution | TestHub

Let us evaluate the output for each logic gate given in the options:

For gate (A): It is a NAND gate with inputs $1$ and $1$.
Output $Y=\overline{1\cdot 1}=\overline{1}=0$

For gate (B): It is a NAND gate with inputs $1$ and $0$.
Output $Y=\overline{1\cdot 0}=\overline{0}=1$

For gate (C): It is a NOR gate with inputs $0$ and $1$.
Output $Y=\overline{0+1}=\overline{1}=0$

For gate (D): It is an XOR gate with inputs $0$ and $0$.
Output $Y=0\oplus 0=0$

Therefore, only gate (B) has an output of $1$.

Answer: B