I am new to the concept of transfer function and I have a question that might be somewhat stupid. Given the circuit depicted in the image, we are asked to find the transfer function.
According to the solution, we assume that there is no current coming from the loop which is defined by the capacitor and Vout. Why is that assumption correct? I mean, if we connect an external circuit between the Vout pins, there must be a current flowing there, so the calculated trasfer function fails to describe the Vout-Vin relationship correctly.