
If a, b, c, d are inputs to a gate and x is its output, then, as per the following time graph, the gate is:

- OR
- NAND
- NOT
- AND
Solution
| a | b | c | d | X |
| 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 1 | 1 |
When any input is one, output is one, hence the gate is 'OR' gate.
Asked in: JEE Main 2016 (03 Apr)