Electronics and Communication Engineering - Digital Electronics - Discussion

2. 

Assertion (A): The output of a NOR gate is equal to the complement of OR of input variables.

Reason (R): A XOR gate is a universal gate.

[A]. Both A and R are correct and R is correct explanation of A
[B]. Both A and R are correct but R is not correct explanation of A
[C]. A is true, R is false
[D]. A is false, R is true

Answer: Option C

Explanation:

XOR gate is not a universal gate.


Chaitanya said: (Apr 30, 2016)  
Only NAND and NOR gates are the universal logic gates. That's why R is false.

Sandy said: (Mar 26, 2017)  
B is the correct answer.

Sneh said: (May 22, 2018)  
A is false, are is true is the correct option.

Bakir said: (Aug 1, 2018)  
Option B is the correct answer.

A'+B'!= (A+B)'.

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