If you search for "elec circuit -simple electronics- vol.1 pdf" and actually take the time to follow along with real components (estimated cost: $20 for a starter kit), you will achieve in one weekend what takes a semester in a college lecture hall.
There are two main types of electric circuits: elec circuit -simple electronics- vol.1 pdf
If you master the PDF of Volume 1, Volume 2 becomes significantly easier. If you search for "elec circuit -simple electronics- vol
A hallmark of the ElecCircuit series is its focus on hands-on learning through simple, reproducible designs: elec circuit -simple electronics- vol.1 pdf