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Questions  

Consider the combination of two NOR gates shown in figure.The output Y for A=B=C=1 is, 

 

a
Y=0
b
Y=1
c
Y=3
d
None of these

detailed solution

Correct option is A

Y=A+B______+C____________=A+B¯ +C¯¯¯= (A+B).c¯¯¯ = A+B.c¯ = 0

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