
Electromagnetism | Definition, Equations, & Facts | Britannica
Feb 2, 2026 · Electromagnetism, science of charge and of the forces and fields associated with charge. Electricity and magnetism are two aspects of electromagnetism. Electric and magnetic forces can be …
Physics - Electricity, Magnetism, Study | Britannica
Feb 6, 2026 · Although conceived of as distinct phenomena until the 19th century, electricity and magnetism are now known to be components of the unified field of electromagnetism. Particles with …
Magnetism | Definition, Examples, Physics, & Facts | Britannica
Jan 30, 2026 · Magnetism, phenomenon associated with magnetic fields, which arise from the motion of electric charges. It can be an electric current in a conductor or charged particles moving through …
Electromagnetic radiation - Electricity, Magnetism, Waves | Britannica
Jan 23, 2026 · There was no apparent connection of electricity with magnetism, except that magnetic poles, like electric charges, attract and repel with an inverse-square law force.
Physical science - Electricity, Magnetism, Physics | Britannica
Within electricity and magnetism attempts at theoretical unification were conceived in terms of either gravitational-type forces acting at a distance, as with Ampère, or, with Faraday, in terms of lines of …
Electromagnetism - Induction, Faraday, Magnetism | Britannica
Dec 26, 2025 · Electromagnetism - Induction, Faraday, Magnetism: Faraday, the greatest experimentalist in electricity and magnetism of the 19th century and one of the greatest experimental …
Electromagnetism - Discovery, Uses, Physics | Britannica
Feb 2, 2026 · The founder of the modern sciences of electricity and magnetism was William Gilbert, physician to both Elizabeth I and James I of England. Gilbert spent 17 years experimenting with …
Magnetic Fields, Forces, Interactions - Britannica
Feb 2, 2026 · The practical application of magnetism in technology is greatly enhanced by using iron and other ferromagnetic materials with electric currents in devices like motors. These materials …
Ampère’s law | Electricity, Magnetism, Physics | Britannica
Ampère’s law, one of the basic relations between electricity and magnetism, stating quantitatively the relation of a magnetic field to the electric current or changing electric field that produces it.
Discovery of electromagnetism | Britannica
electromagnetism, Branch of physics that deals with the relationship between electricity and magnetism.