Q.
The following figure shows a logic gate circuit with two inputs $A$ and $B$ and output $C$ . The voltage waveforms of $A$ , $B$ and $C$ are as shown in second figure below
The logic circuit gate is
NTA AbhyasNTA Abhyas 2020Semiconductor Electronics: Materials Devices and Simple Circuits
Solution:
Gate is $AND$ gate.
Because
A
B
C
1$^{st}$ interval
0
0
0
3$^{rd}$ interval
0
1
0
4$^{th}$ interval
1
0
0
2$^{nd}$ interval
1
1
1
Hence this is $AND$ gate.
| A | B | C | |
|---|---|---|---|
| 1$^{st}$ interval | 0 | 0 | 0 |
| 3$^{rd}$ interval | 0 | 1 | 0 |
| 4$^{th}$ interval | 1 | 0 | 0 |
| 2$^{nd}$ interval | 1 | 1 | 1 |