Let's try some more interview questions. The numbering for the questions continues from the previous post.
Remember that there is not one "right" answer. There might be several good answers and there might be several poor answers that make me aware that you have not had much experience. It is unlikely that any single answer would ever make me judge you harshly. Indeed, I have been known to hire people who got several answers very wrong. But it was the way they discussed their answers, especially after some mid-course correction that made the difference in my opinion.
4) If you connected an oscilloscope to a signal on a circuit board and saw a waveform that looked roughly like the one below.
5) Now let’s assume that we have a relatively low frequency signal like audio going through an amplifier (perhaps an operational amplifier) stage. Assume that the input and output waveforms shown are what you see with your oscilloscope.
6) Let’s look at a printed circuit board layout. Assume that this is a two-sided PCB, with red as the top layer and blue as the bottom layer.
Okay, this ends the second three questions. The next posting will have 4 questions, giving us a nice total of 10 questions. If you are feeling less than 100% confident in your answers, that is okay. Time to do some research.