You probably won't cover much circuits in you're upper level EM class. You win probably learn more about inductance, which is certainly relevant to how inductors work, but you won't be learning as much about circuits as you will in a freshman level class.
In my school we had an electronics lab where we learned more about circuits and built them on jobboards, but i think that is something that depends on what school you're going to.
My best advice, look up the textbook being used for your upper level EM class. It will probably be Griffiths.