question_answer

The figure shows a combination of two NOT gates and a NOR gate. [JEE ONLINE 26-05-2012]

The combination is equivalent to a

A) NAND gate

B) NOR gate

C) AND gate

D) OR gate

Correct Answer: C

Solution :

[c] Truth table is as shown:

A B 0 0 1 1 1 0 0 1 1 0 1 0 1 0 0 1 1 0 1 1 0 0 0 1 Thus the combination of two NOT gates and one NOR gate is equivalent to a AND gate.