Hello, I'm trying to study from Serway-Jewett's text 6th Edition. My problem is that after each chapter there is like 70+ problems and a lot of them are just too direct and a waste of time.. When I know I have to solve 70+ problems on the same subject I just get really unmotivated.. So if there's a list of like 10 to 15 best problems to solve after each chapter that would make life much easier and give me (and other students) more motivation to get to work.. does anyone have that kind of list? P.S. I'm studying Electricity & Magnetism and Thermodynamics. If you have a list available for other general physics textbooks please share.