Discussion Forum



1)

To get an output  y=0 from the circuit shown in the figure, the input C  must be 

2252021134_p1.JPG


A) 0

B) 1

C) either 0 or 1

D) none of these

Answer:

Option A

Explanation:

As  we know, the output of OR gate

 Y=A+B

 The output of AND gate

 Y'= Y.C

$\Rightarrow$ Y'= (A+B). C

 if C=0 irrespective of A and B , then output Y must be zero