Neblux Knowledge Graph
Electromagnetism
Electromagnetism is the branch of physics devoted to the study of electric and magnetic fields, electric charges, and their mutual interactions.
Overview
Electric charges and currents produce electric and magnetic fields, while changing fields give rise to electromagnetic induction and waves. Maxwell’s equations describe these relationships, and the Lorentz force connects fields to the motion of charged particles. Together they explain phenomena ranging from static attraction and magnetic forces to induction, light, and radio transmission.
Why it matters
The principles of electromagnetism provide the theoretical basis for power generation, electrical machinery, telecommunications, and optics. Within theoretical physics, classical electrodynamics informed the development of quantum electrodynamics and subsequent gauge theories.
Where it leads
Related concepts
- PhysicslogicalElectromagnetism is one of the four fundamental forces of physics
- EngineeringappliedElectrical engineering applies electromagnetic principles to design circuits, motors, and communication systems
- Quantum MechanicslogicalQuantum electrodynamics extends electromagnetic theory into the quantum domain