Going to learn more about using capacitors in our circuit analysis. Last class was Thevenin and Norton equivalent circuits and before that was source transformations.
It is, I enjoy it. Lots of math though. I would consider making a tutorial guide for circuits like I am doing C++.....but I don't think anyone here would use it or find it interesting. lol. Who would want to sit at home and learn math?
Then that implies they are no longer just connected to themselves. You now have a voltage/current source. Even if there are no resistors or anything, the wire has a natural resistance. And pretty much the electricity just goes in circles and follows the wire. Still wouldn't serve any purpose at this point.
All sources are "connected to themselves" or else they wouldn't do anything. Usually for it to be useful though and serve a purpose, you have other things connected in there as well. But it has to be a loop.