La loi d’Ohm, la résistance électrique

We explain the physical origin of Ohm's law based on the concepts of electric potential and electric current. The approach consists of calculating the expression of electric current in a conducting material based on the concept of electron mobility. On our website https://clipedia.be, you'll find other videos to help you better understand science. It's easier to navigate on the website because the videos are better categorized. Plus, on Clipedia, you can get answers to your questions. Here, we only answer in exceptional cases... so there's not much time to devote to the usual arguments that arise in the comments. On Clipedia, you'll also find quizzes to check what you've really understood. So, we're looking forward to seeing you soon! And if you'd like to give us a hand in return, don't hesitate to support us on Tipeee: https://www.tipeee.com/clipedia. We will need help to cover the entire program in five years.