A) AND gate
B) NAND gate
C) XOR gate
D) OR gate
Correct Answer: A
Solution :
In given circuit, output of first NAND gate is \[\operatorname{Y}'\,\,=\,\,\overline{A\,\cdot \,\,B}\,\,=\,\,\overline{A}+\overline{B}\]You need to login to perform this action.
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