Measure the DC voltage at pin $2$ using multimeter. The measured voltage is

$q,$

While measuring the $DC$ voltage at pin $2,$ tune the $1k$ potentiometer so that the $DC$ voltage value goes more negative. What effect does it have on the comparator output? Write your observations below.

When the DC voltage on pin two is turned more negative $($Because pin $2$ is the negative terminal of the operation amplifier$),$ the duty cycle diminishes on the negative side, and the output voltage goes more negative than before.

$15.$ While measuring the DC voltage at pin $2,$ tune the $1k$ potentiometer so that the DC voltage value goes more positive. What effect does it have on the comparator output? Write your observations below. Please solve all