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 2 of 6.
Aaaa said:
1 decade ago
For the output of and gate to be high we need all 1 because by the combination of any 0 in case of and we get a 0 that is low output.
Rahul jonjare said:
9 years ago
The output of an exclusive-nor gate is 1. Which input combination is correct?
A) a=1, b=0
B) a=0, b=1
C) a=0, b=0
D) none of these.
A) a=1, b=0
B) a=0, b=1
C) a=0, b=0
D) none of these.
SUBHAJIT SAHA said:
8 years ago
IF,
A=0,B=0,C=0 - 0
A=1,B=0,C=0 - 0
A=0,B=1, C=0 -0
A=1,B=1,C=0 - 0
A=1,B=0, C=1 -0
ONLY,
A=1,B=1,C=1 - 1(HIGH) BECAUSE A*B*C.
A=0,B=0,C=0 - 0
A=1,B=0,C=0 - 0
A=0,B=1, C=0 -0
A=1,B=1,C=0 - 0
A=1,B=0, C=1 -0
ONLY,
A=1,B=1,C=1 - 1(HIGH) BECAUSE A*B*C.
N.SHIRISH said:
1 decade ago
Output of an AND gate is high when all inputs are high a=1, b=1, c=1.
Output of AND gate is = A*B*C = 1*1*1 = 1.
Output of AND gate is = A*B*C = 1*1*1 = 1.
Purushothaman R said:
1 decade ago
simple logic for xor ...
suppose A xor B = AB'+BA'
That is if both A and B Value is same then result is same
suppose A xor B = AB'+BA'
That is if both A and B Value is same then result is same
Rehan said:
7 years ago
The Logic of and gate is when all the 3 inputs are high output is high when any one input is low output is low.
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.
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.
Rashi said:
1 decade ago
Table for AND gate
A B Y
0 0 0
0 1 0
1 0 0
1 1 1
Output is high only when both the inputs are high.
A B Y
0 0 0
0 1 0
1 0 0
1 1 1
Output is high only when both the inputs are high.
SAMEER QCD said:
6 years ago
And gate.
A B Y
0 0 0
0 1 0
1 0 0
1 1 1.
The output is high only when both the inputs are high.
A B Y
0 0 0
0 1 0
1 0 0
1 1 1.
The output is high only when both the inputs are high.
(1)
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