Question 111: Semiconductors and Logic Gates

Question

Draw the output signal Y in the given combination of gates.

Accepted Answer

Y = $$\overline {\overline A  + B} $$ = $$A.\overline B $$
A = 0 $$ \Rightarrow $$ Y = 0 for B = 0 or B = 1
A = 1 $$ \Rightarrow $$ Y = 0 for B = 1
A = 1 $$ \Rightarrow $$ Y = 1 for B = 0
Hence output is 1 only when input A = 1 and B = 0.
$$ 	herefore $$ A is the correct output.

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Semiconductors and Logic Gates

Draw the output signal Y in the given combination of gates.

Choose the correct answer: