Question

Write the truth table for a NAND gate connected as given in Figure.

Answer 1

$A$ acts as the two inputs of the NAND gate and $Y$ is the output.

Hence, the output can be written as:

$Y=\overline{A.A}=\overline{A}$. This is the not gate and truth table is as follows.

Input (A)	Output (Y)
0	1
1	0