Question $1$: What will be the output if we provide a $5(V)$ DC input into a differentiator?

$($a$)$ Zero

$($b$)$ Linear function $5$ t

$($c$)5(V)DC$ output

$($d$)$ None of the above

Question $2$: What will be the output if we provide a $5($V$)$ DC input into an integrator?

$($a$)$ Sine wave output

$($b$)$ Square wave output

$($c$)$ Linear output $($a line$)$

$($d$)$ None of the above

Question $3$: What is the purpose of using hysteresis in comparator?

$($a$)$ Making a faster response in the circuit

$($b$)$ Save the cost of building the circuit

$($c$)$ To protect the circuit against short circuit

$($d$)$ To avoid fluctuated output due to the additive noise

Question $4$: A comparator with hysteresis has $V_{\text{r}\text{e}\text{f}-\text{h}\text{i}\text{g}\text{h}}=5V$ and $V_{\text{r}\text{e}\text{f}-\text{h}\text{i}\text{g}\text{h}}=3V$ can work well if the amplitude of the additive noise is:

$($a$)5$ V

$($b$)4$ V

$($c$)3$ V

$($d$)1$ V