Digital Logic

1:

In which of the following gates, the output is 1, if and only if at least one input is 1?

A.

NOR

B.

AND

C.

OR

D.

NAND

 

Answer : C

Explanation :

In OR gate  we need atleast one bit to be equal to 1 to generate the output as 1 because OR means  any of the condition out of two is equal to 1  which means  if atleast one input is 1 then it shows output as 1 . Number of 1's in input may be more than one but the output will always be 1 in OR gate. So the answer is 'C'.

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Option: A

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