This is not the most intuitive part of knowledge from electronics so I follow relatively good course from this website https://www.electronics-tutorials.ws/inductor/inductor.html.
But some fundamentals should be supplemented with education on the basis of Halliday and Resnick book on fundamentals of physics where are multiple exercisers to understand topic fully.
Today people often understand basic relationships between voltage, current and resistance, some role of bridges, elementary transistors, resistors ladders to decrease voltage for specified purposes like in microprocessors, power supplies for computers etc. And inductors are rarely seen exclusively as interesting topic as radio is no longer what concerns us because we live in the Internet era. This is not obvious. But this is true.
The goal of my websites is to bring the more exhaustive panorama of electrical phenomena that some of them we almost forgot because we are persuaded what is the progress, what are milestones in technology development and to be honest – 99% of people are simply ignorant, more or less in these full of details topics. With endless discoveries, inventions. So many that no expert can honestly say that remembers them all through all the time. It is impossible to be close to these phenomena every time. This is why good Internet courses, course books, manuals, Wikipedia, other resources for hobbyists and professionals should be embraced sometimes simultaneously to get all the points.