29 August 1831 (ring experiment) / Europe
Faraday demonstrates electromagnetic induction
Changes in one circuit produced a brief current in a nearby coil. Faraday then investigated other ways to generate currents through magnetism and motion.
The story
At London’s Royal Institution, Faraday observed a transient current when a battery circuit was switched on or off. This date identifies the induction-ring experiment; moving magnets and rotating-disc experiments followed over subsequent months. A stationary magnet beside a coil does not continuously generate electricity. Later experiments and mathematical work clarified the relationships involved.
Connections and context
Induction connected laboratory observations to generators and transformers. Electromagnetic theory subsequently brought electricity, magnetism and light into a shared explanatory framework.
Dates and precision
29 August 1831 (ring experiment) Documented date
Positioned by the documented year, month or day. Missing precision is not inferred.
Representative map location
Royal Institution, London
The marker represents the Royal Institution laboratory in London.
Representative coordinates · 51.5095°, -0.142°
A marker identifies one representative place, such as a manuscript collection, laboratory or observing site. It does not mean the work happened only there, or assign a shared discovery to one country.
Bibliography
- Institution of Engineering and Technology: Michael Faraday
- History of research at the Royal Institution
- Faraday’s diary: induction experiments
References are listed as plain bibliography titles. They support particular facts or context; a reference does not certify every interpretation in a story.