Question

To get an OR gate from a NAND gate, we need

• A. Only two NAND gates
• B. Two NOT gates obtained from NAND gates and one NAND gate
• C. Four NAND gates and two AND gates obtained from NAND gates
• D. None of the above

Hint:

NAND gates can be used to create any other basic logic gate, including OR and NOT gates, through specific configurations.

Answer 1

The Correct Option is B

Step 1: Understanding logic gates.
An OR gate can be formed by combining NAND gates. Specifically, we need two NOT gates created from NAND gates and one additional NAND gate. This combination will produce the desired OR functionality.

Step 2: Conclusion.
The correct configuration requires two NOT gates obtained from NAND gates and one additional NAND gate. Therefore, the correct answer is option (2).