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:
(A)AND
(B)OR✓ Correct
(C)NAND
(D)NOT
Answer: (B)
Solution
Reading the waveforms, the output is high whenever any one of the inputs a, b, c or d is high, and drops low only when all four inputs are low together. That is exactly the behaviour of a multi-input OR gate.
JEE Main · 2016 · 03 Apr 2016 · Offline · Single correct option