question_answer

The circuit is equivalent to

A)  NOR gate        

B)  AND gate

C) NAND gate     

D)  OR gate

Correct Answer: C

Solution :

 Consider the gate circuit with inputs Different outputs are \[{{Y}_{1}}=\overline{AB}\] \[{{Y}_{2}}=\overline{\overline{AB}}=AB\] \[Y={{\bar{Y}}_{2}}=\overline{AB}\] Which is the output of NAND gate.