QUESTION $4$

Regarding an integrator amplifier based on an Operational Amplifier $($OA$)$ as shown in Figure $3,$ reason properly which of the following statements are true and which are not $($answers without proper reasoning or explanation will not be considered valid$)$:

a$)$

The output of an integrator amplifier is proportional to the integral of the input signal with respect to time.

b$)$

In an integrator amplifier, if the input signal is a positive constant, the output will be a descending ramp with a constant slope.

c$)$

The response of an integrator amplifier is independent of the frequency of the input signal.

d$)$

The integrator amplifier circuit can be used to generate a square wave if the input signal is a triangular signal.