File:Faraday disk generator.jpg
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Summary
| Description |
English: Drawing of Faraday disk, the first electromagnetic generator, invented by British scientist Michael Faraday in 1831. The copper disk (D) rotated between the poles of a horseshoe shaped magnet (A), creating a potential difference between the axis and rim due to Faraday's law of induction. If an electrical circuit such as a galvanometer was connected between the binding posts (B) and (B') the motion induced a radial flow of current in the disk, from the axle toward the edge. The current flows into the spring contact (m) sliding along the edge of the disk, out of binding post (B') through the external circuit to binding post (B) , and back into the disk through the axle. Turning it in the opposite direction reverses the direction of current. The caption also says that passing a current from a Bunsen cell (battery) through it would cause the disk to turn, making it function as an electric motor. The labeled parts are given in the caption as:
The caption describes it as 'Foucault's and Le Roux's apparatus' so this picture was not drawn from Faraday's original machine, but one owned by Faraday's contemporary French physicist Léon Foucault. The Faraday disk was an inefficient generator because counter-currents flowed back through regions of the disk outside the magnetic field. It was the first homopolar generator |
| Date | |
| Source | Downloaded from Émile Alglave & J. Boulard (1884) The Electric Light: Its History, Production, and Applications, translated by T. O'Conor Sloan, D. Appleton & Co., New York, p.224, fig.142 on Google Books |
| Author | Émile Alglave |
| Permission (Reusing this file) |
Public domain - published in USA before 1923 |
Licensing
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 07:30, 26 September 2021 | 1,920 × 1,500 (1.31 MB) | Vort | better quality | |
| 03:34, 22 December 2007 | 487 × 382 (35 KB) | Chetvorno | {{Information |Description=Drawing of Faraday disk, the first electric generator, invented by British scientist Michael Faraday in 1831. |Source=Downloaded from [http://books.google.com/books?id=zh5pbMMwARQC&pg=PA224 Émile Alglave & J. Boulard (1884) ' |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
Global file usage
The following other wikis use this file:
- Usage on af.wikipedia.org
- Faraday se wet
- Usage on ar.wikipedia.org
- حث كهرومغناطيسي
- Usage on az.wikipedia.org
- Maykl Faradey
- Usage on be.wikipedia.org
- Уніпалярная машына
- Майкл Фарадэй
- Usage on bg.wikipedia.org
- Електрически генератор
- Електроенергетика
- Usage on ca.wikipedia.org
- Generador homopolar
- Usuari:Contraix/proves/Màquina de Gramme
- Màquina de Gramme
- Usage on ce.wikipedia.org
- Фарадей, Майкл
- Usage on de.wikipedia.org
- Unipolarmaschine
- Benutzer:PGRG/Spielwiese
- Usage on el.wikipedia.org
- Νόμος της επαγωγής του Φαραντέι
- Usage on en.wikiversity.org
- User:Jtwsaddress42/People/Faraday, Michael
- User:Jtwsaddress42/People/F
- User:Jtwsaddress42/Gallery/Faraday, Michael
- User:Jtwsaddress42/Gallery/Faraday, Michael - Michael Faraday
- User:Jtwsaddress42/Gallery
- Usage on es.wikipedia.org
- Generador eléctrico
- Generador homopolar
- Usage on eu.wikipedia.org
- Indukzio elektromagnetiko
- Usage on fa.wikipedia.org
- مولد الکتریکی
- دینام
- Usage on fr.wikipedia.org
- 1831 en science
- Générateur homopolaire (machine électrique)
- Usage on fr.wikibooks.org
- Les ressorts
- Usage on hi.wikipedia.org
- डायनेमो
- Usage on id.wikipedia.org
- Generator listrik
- Usage on it.wikibooks.org
- Cronologia delle invenzioni/XIX secolo
- Cronologia delle invenzioni/D
- Usage on ja.wikipedia.org
- 発電機
- Usage on kk.wikipedia.org
- Униполярлы генератор
- Usage on kn.wikipedia.org
- ಡೈನಮೋ
- ವಿದ್ಯುತ್ಕಾಂತೀಯ ಪ್ರೇರಣೆ
- Usage on ko.wikipedia.org
- 패러데이 전자기 유도 법칙
- 다이너모
- Usage on mk.wikipedia.org
- Динамо
- Електромагнетна индукција
- Електричен генератор
- Електрификација
- Usage on ml.wikipedia.org
- വൈദ്യുതജനിത്രം
- Usage on mr.wikipedia.org
- जनित्र
- Usage on ms.wikipedia.org
- Penjana elektrik
- Usage on nl.wikipedia.org
- Homopolaire generator
- Usage on no.wikipedia.org
- Generator
- Bruker:Phidus/sandkasse-14
- Usage on oc.wikipedia.org
- Michael Faraday
- Usage on pl.wikipedia.org
- Dysk Faradaya
- Generator elektryczny
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