Q 12-14-096JEE MainJEE Main 2023 (13 Apr, Shift 1)Medium
For the following circuit and given inputs $A$ and $B$, choose the correct option for output $Y$.
Answer: (A) see figure
The first gate gives $\bar A$, the second gives $B$, and the NAND gives
$$Y=\overline{\bar A\cdot B}=A+\bar B$$
$Y=0$ only when $A=0$ and $B=1$, which happens only between $t_1$ and $t_2$. Everywhere else $Y=1$: waveform (1).
Solution by Sreeraj P, M.Sc Physics