Question
Physics Question on Logic gates
A logic gate circuit has two inputs A and B and output Y. The voltage waveforms of A, B and Y are shown below.
Fig. Logic gate circuit
The logic gate circuit is :
A
AND gate
B
OR gate
C
NOR gate
D
NAND gate
Answer
AND gate
Explanation
Solution
The correct answer is (A) : AND gate
On the basis of given graph, following table is possible.
| A | B | C |
|---|---|---|
| 0 | 0 | 0 |
| 1 | 1 | 1 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
From waveforms and above table, it is an AND gate.