Digital Electronics - Logic Gates - Discussion
Discussion Forum : Logic Gates - General Questions (Q.No. 2)
2.
If a 3-input NOR gate has eight input possibilities, how many of those possibilities will result in a HIGH output?
Discussion:
38 comments Page 4 of 4.
Baljeet kaur said:
1 decade ago
NOR gate have two or more i/p and only one o/p , AND gate have also two or more i/p and one o/p and NOT gate have 2 i/p or 1 o/p.
Rashmi said:
1 decade ago
Truth table of NOR
Now in 8 connection only 1 can have 0 0 0 i/p so that 1 connectn can remain high.
i/pa i/pb o/p
0 0 1
0 1 0
1 0 0
1 1 0
Now in 8 connection only 1 can have 0 0 0 i/p so that 1 connectn can remain high.
Madhu said:
1 decade ago
What about 3 inputs. 8 inputs? I cant understand.
Anju said:
1 decade ago
When A=0, B=0, C=0 then OR gate output is LOW then NOR gate output is HIGH.
Rajesh said:
1 decade ago
I want to know how the ans is A.
Rajeev kumer said:
1 decade ago
Hi, can you explain it clearly?
Bhavani said:
1 decade ago
Correct.
Tribhuwan said:
1 decade ago
The output of a NOR gate is high only when all the input will be in low (0) state
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