Digital Electronics - Logic Gates - Discussion
Discussion Forum : Logic Gates - General Questions (Q.No. 1)
1.
The output of an AND gate with three inputs, A, B, and C, is HIGH when ________.
Discussion:
51 comments Page 3 of 6.
Rajesh Kumar Shrivastav said:
1 decade ago
The output of an AND gate is high when all the inputs are high.
Sital said:
1 decade ago
The AND gate gives high output when all the inputs to the gate are high.
Mayoosha k r said:
1 decade ago
The output of an AND gate only high when all its inputs are high otherwise it is low.
Vinidha said:
1 decade ago
Output of AND gates are high when all the inputs are 1. If any of the input is 0, the output will be 0.
Sanjay Sampat said:
1 decade ago
Logically, 1 or high is associated with true in positive logic. Hence if all inputs are true/high/1 then output is true/high/1.
Electrically, 1 or high is associated with +5v in TTL. When switches are in series and all are closed then only high input is available( can be applied) at output.
Electrically, 1 or high is associated with +5v in TTL. When switches are in series and all are closed then only high input is available( can be applied) at output.
J.s.bharvad said:
1 decade ago
Table for and gate Y=1X1X1 =1 correct answer.
A B C Y
0 0 0 0
1 0 0 0
1 1 0 0
1 1 1 1
A B C Y
0 0 0 0
1 0 0 0
1 1 0 0
1 1 1 1
M.h.mohamed sheik shaheed said:
1 decade ago
When all the inputs are high the resultant output also high.
If a=0, b=0 then a*b=0.
This is for low output for high a=1, b=1 then a*b=1.
If a=0, b=0 then a*b=0.
This is for low output for high a=1, b=1 then a*b=1.
Prashant kumar sharma said:
1 decade ago
There are three input present and all have high value =1.
So in in and operation 1*1*1=1.
It is a high.
So in in and operation 1*1*1=1.
It is a high.
Vilas awasarmol said:
1 decade ago
When all input are high then output is high.
Bincy kousthubham said:
1 decade ago
The output of an AND gate is high (1) only if all the inputs are high (1). The output is low (0) if any one of the input is low (0). The reason is AND gate performs multiplication function.
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