NEET-XII-Physics
14: Semiconductor Electronics: Materials Devices and Simple Circuits
- #16Write the truth table for a NAND gate connected as given in Fig. 14.45.
Hence identify the exact logic operation carried out by this circuit.
Ans : A acts as the two inputs of the NAND gate and Y is the output, as shown in the following figure.
Hence, the output can be written as:
The truth table for equation (i) can be drawn as:
A
Y 
0
1
1
0
This circuit functions as a NOT gate. The symbol for this logic circuit is shown as:
