Question

Identify the correct output signal Y in the given combination of gates (as shown) for the given inputs A and B.

• A.
• B.
• C.
• D.
• E. None of these

Answer 1

The correct option is E

None of these

Solution:

Step 1: Give the diagram

Step 2: Solution

This logical circuit two NOT gate through which signal is provided.

The signal is than feeded to NAND gate.

Now identify the correct output signal Y, and draw the figure,

The output of the logical circuit is obtain by solving the Logical express using De morgens theorem.

$$\begin{gathered} Y=\overline{\overline{A.}\overline{B}} \\ Y=\overline{\overline{A}}+\overline{\overline{B}} \\ Y=A+B \end{gathered}$$

Therefore the truth table for the given interval,

Hence, the correct option is (E).