Discussion :: Logic Gates - General Questions (Q.No.37)
A 2-input NOR gate is equivalent to a ________.
Answer: Option B
No answer description available for this question.
|M.Naresh said: (Aug 25, 2011)|
|Please explain me.|
|G.V.Narayanan said: (Sep 19, 2011)|
|Reason for 2 input NOR gate we apply.
Why this result for AND gate?
|Rooh said: (Oct 14, 2011)|
|For input seq 00 01 10 11
output of nor is 1 0 0 0
output of and is 0 0 0 1
output of nand is 1 1 1 0
So wich is negegetive AND reffer to here i cant understand.
For me it should be negetive OR... the option A will be the answer then..
If given answer is right then please explain it to me...
|Bhargavi said: (Mar 8, 2012)|
|Can any one please explain this clearly ?|
|Ashok said: (Apr 18, 2012)|
|Negative and gate means your inputs are inverted to the and gate. So you get a output for (00 01 10 11) is 1 0 0 0. It same as the nor gate output. Ok.|
|Komal said: (Jun 4, 2012)|
|A Negative-AND gate functions same as AND gate with all its inputs inverted
A B -A -B OR(A+B) NOR -AND(-A*-B)
0 0 1 1 0 1 1
0 1 1 0 1 0 0
1 0 0 1 1 0 0
1 1 0 0 1 0 0
From above truth table output of NOR gate and negative AND (Bubbled AND gate) are equal.
|Arjun Tehale said: (Oct 7, 2012)|
|can any one spell it out properly plz|
|Viswanath said: (Dec 29, 2012)|
|If inverter is placed for the two terminals of the and gate. Then it is nor gate. Then from this we can say that -ve and gate is equivalent to nor gate.|
|Khyati said: (Oct 25, 2013)|
|If we compare truth table of negative AND gate And truth table of NOR gate. Than we can easily understand.|
|Guruswamy said: (Jan 24, 2014)|
|Given inputs are A, B,
For NOR gate output is (A+B)complement.
Case 2 :
For negative and gate output is:
(A complement) * (B complement) = (A+B) complement.
|S Kumar Swami said: (Feb 21, 2014)|
|In this problem we can solve like also,
At first we have taken 2 input as 1 & 0. In the nor gate the output is 0.
It is equivalent to negative and gate because in and gate we will got 0 as output. So in negative and gate it must be 1.
Hence 2 input-nor gate is equivalent to negative and gate.
|Jagadish said: (Jun 16, 2015)|
|NOR gate is equivalent to AND gate with its inputs bubbled. Means NOR gate = Inputs bubbled AND gate.
Similarly NAND gate means inputs bubbled or gate.
|Nitesh Jain said: (Sep 29, 2015)|
|How to Remember?
-1/4AND ===negative==> NOR^-2.
-1/4OR ===negative==> NAND^-2.
-1/4NAND ===negative==> OR^-2.
-1/4NOR ===negative==> AND^-2.
|Narottam said: (Jun 1, 2016)|
|Why not option C?|
|Shreyan said: (Jul 6, 2016)|
I got it, Thanks.
|An007 said: (Aug 2, 2016)|
|NOR = (A + B) compliment.
-ve AND means bubble at the input,= NAND.
A comp + B comp = A.B comp.
|Sharath said: (Aug 17, 2016)|
|Nice explanation, Thanks to all.|
|Sudhakar said: (Jun 9, 2017)|
|I think Option 'A' is the answer.|
|Pavan Chowdary said: (Sep 10, 2017)|
|Yes, correct explanation @Guruswamy.|
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