Question 31: Semiconductors and Logic Gates

Question

Which of the following circuits has the same output as that of the given circuit?

Accepted Answer

$$Y = \overline {A.B + A.\overline B }  = \overline {A(B + \overline B )}  = \overline {AI} $$
$$ \Rightarrow Y = \overline A $$
1.
(As $$A\,.\,A = A$$
Hence, option 1 is correct.

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Semiconductors and Logic Gates

Which of the following circuits has the same output as that of the given circuit?

Choose the correct answer: