35 multiple-choice questions in College Board exam style. Each has four choices and a full explanation of why each option is right or wrong.
Practice the right-hand rule physically. Actually move your hand through the motion rather than trying to visualize it: this dramatically reduces errors on direction questions.
Remember magnetic force never does work. Questions about kinetic energy or speed change due to magnetic force alone should immediately raise a red flag: the answer is usually "no change."
For induction questions, separate magnitude (Faraday) from direction (Lenz). Solve them as two separate steps rather than trying to get both from one calculation.
Read the explanations even when you got it right. Each one teaches a small fact that often returns in a different form on the exam.