Question

When an input signal $1$ is applied to a NOT gate, its output is

• A. $1$
• B. $0$
• C. either $0$ or $1$
• D. both $0$ and $1$

Answer 1

Answer: (B)

$0$

NOT gate yields the reverse of the input signal in output, thus when an input signal $1$ is applied to a NOT gate, its output is $0$.