Do not open the PDF if you haven’t read the theory. Jaramillo’s problems are . If you don’t know Maxwell’s equations in integral form, the solutions will look like magic. Use the PDF after your lecture notes.

The Jaramillo PDF excels at (how to calculate E, V, B). However, most university exams now include conceptual multiple-choice questions (e.g., "What happens to the flux when the angle changes?"). For those, you still need a standard textbook.