
Explore the fundamentals of magnetism with practical explanations, covering Lorentz force, bias, and other notions. Benefit from calculus-based formulas and example-driven lessons for physics newcomers and olympiad enthusiasts.
Learn scalar (dot) and vector (cross) products, their geometric meanings, properties, projections on axes, right-hand rule, and how they apply to work and torque in magnetism.
Explore how currents interact through their magnetic fields, revealing the force between two current-carrying conductors and the role of the magnetic field in shaping a compass needle.
Generate magnetic fields from moving charges and currents. Fields interact with charged particles and currents via Lorentz and Ampère forces, described by the magnetic induction vector B.
Explore magnetic moment, defined as I times area times the normal vector derived via a right-hand rule, and how it connects to magnetic field and torque.
Explore how moving charges and electric currents generate magnetic fields, and apply the Biot–Savart law to compute the field from a moving charge and from current in a conductor.
Apply the Biot-Savart law to compute magnetic fields from a straight current and a circular loop, deriving B = μ0 I /(2π r) and B = μ0 I /(2 r).
Apply the Biot–Savart law to a circular current and derive the magnetic field on the axis by integrating current elements and projecting onto the z-axis, connecting to the magnetic moment.
Explore how a conductor's current creates a magnetic field that exerts the Lorentz force on a charged particle, using F = q(v × B) and F = qE.
Learn how ampere's force emerges as the magnetic force on a current carrying conductor from the Lawrence force on individual charges, by summing current elements with differential calculus.
Closed circuits in magnetic fields: a homogeneous field yields zero force but torque appears. In nonuniform fields, energy U = -m · B creates a force.
Demonstrate how magnets work by showing that aligned electron spins in ferromagnetic materials such as iron, nickel, and cobalt create a magnetic field.
How many misconceptions did you have or maybe still have about magnetism? Probably, you at least once in your life thought that only magnets can have magnetic fields. What’s worse, you might even misunderstand the way magnetism works in real life. Even if you didn’t face such issues, your curious mind wondered why magnets act the way they do. It’s time to put the end point to all those misconceptions and questions by letting you possess relevant and scientific data about magnetism with the help of this course.
Throughout this course, you will need to deal mainly with general information which works in every case. For example, using Biot-Savart Law, you can find Magnetic Field created by any current of any shape. Of course there are other formulas for general cases, about which you will learn in this course.
Obviously, if we use general and universal laws, their formulas will get complicated and require a high level of mathematics skills such as calculus, vectors and some algebra. We included the topic of vector multiplication, to help you understand the formulas better.
In addition, one of the advantages of our course, compared to other ones, is that we kept the information as precise and comprehensive as possible, as well as understandable and accessible in the hope that you can obtain difficult knowledge in an easy way.
Another thing we did to make sure you understand these topics is additional video sessions, where we showed you how to use the knowledge you learnt. We have such videos for topics of Biot-Savart Law and Lorentz Force. In these videos we show you specific example(s) where these laws or formulas can be applied. These lessons have to some extend hard math, but it will help you master the topic, so that you can use these in every case on your own (very useful for those who want to prepare for olympiads, even for International olympiads)