Exam-style question
Try this first
Which row gives the correct output of an XOR gate when its inputs are A = 1 and B = 1?.
- A.0
- B.1
- C.The output is undefined
- D.The output is the same as an OR gate for all inputs
Model answer
What a good answer should say
- 0
Explanation
Why this works
An XOR gate outputs 1 only when exactly one input is 1. With both inputs equal to 1, its output is 0.
Common mistake
No common mistake is linked to this question yet.