I've been struggling to understand how filter capacitors specifically low pass filters achieve their output signal waveform. If I take the example from https://www.electronics-tutorials.ws/rc/rc_3.html:
The output waveform for the right side looks like a saw-tooth/triangualr type waveform. I'm confused why it doesn't look something like this though:
My confusion stems from the thought that measuring across the right side there its in parallel with the capacitor and if there is a high signal across the nodes going to the capacitor then how come we wouldn't see that on the measure points to the right of the capacitor?