Question
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:
-
NOT
-
AND
-
OR
-
NAND
Solution
C.
OR
The output of OR gate is 0 when all inputs are 0 and output is 1 when at least one of the input is 1.
Observing output x it is 0 when all inputs are 0 and it is 1 when at least one of the inputs is 1.
therefore, the gate is OR
