Electronics and Communication Engineering - Digital Electronics - Discussion

4. 

In a gate output is Low if and only if all inputs are High. The gate is

[A]. OR
[B]. AND
[C]. NOR
[D]. NAND

Answer: Option D

Explanation:

No answer description available for this question.

Sathyamoorthy said: (Apr 16, 2015)  
* Its simple in or gate we get low output at the time of both inputs are low.

* In AND gate we low output when any of input is low.

* In NOR gate we get low output when any one output is high.

* But only in NAND gate we get low output only at the time both input are at high.

Sameer said: (Aug 21, 2016)  
Why not NOR gate?

Swamy said: (Sep 25, 2018)  
As per NAND truth table is right.

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