Magnetism and electromagnetism | AP®︎/College Physics 2 | Khan Academy
Explore the relationships between moving charges, the magnetic fields they generate, and the magnetic forces that act on other moving charges in those fields. Discover the natural symmetry between electricity and magnetism and how electromagnetic induction powers technology in modern society.
Overview
Added
March 18, 2026
Subject & domain
physics · magnetism-electromagnetism
Grade range
Grade 10 (Sophomore)–Grade 12 (Senior)
Page kind
Course
Introduction
Magnetism and Electromagnetism Overview
- Core Subject: The relationship between moving charges, generated magnetic fields, and magnetic forces.
- Key Concepts:
- Magnetic Fields: Visualization via field lines and determining direction using the right-hand rule (cross product).
- Magnetic Forces: Analysis of forces acting on moving charges and current-carrying conductors.
- Electromagnetic Induction: Study of Faraday’s law (magnitude of induced EMF) and Lenz’s law.
- Practical Applications: Understanding how electromagnetic induction powers modern technology and the symmetry between electricity and magnetism.
- Course Structure:
- Includes two quizzes and a final unit test.
- Features applied practice problems for straight current-carrying conductors and forces on conductors.
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