TL;DR
Dave from EEVblog tackles a tricky exam question about operational amplifiers (OpAmps) that challenges common assumptions. He walks through the nuances of the question, highlighting key principles like the two most important rules of OpAmp circuits and the role of capacitive reactance in AC analysis. This isn't just a typical problem; the question plays with the idea of needing to consider frequency while also ignoring it, making it a clever puzzle for students.