Fail:Faraday disk generator.jpg

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Ringkasan

KeteranganFaraday disk generator.jpg	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: (A) inducing magnet (D) induced disk (B) binding-screw for current entering or exiting axis of disk (B') binding-screw for current entering or exiting circumference of disk (m) rubber (sliding spring contact) for edge of disk. 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 Alterations to image: cropped out caption and list of parts.
Tarikh	1884
Sumber	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
Pengarang	Émile Alglave
Kebenaran (Penggunaan semula fail ini)	Public domain - published in USA before 1923

Perlesenan

Public domain	Fail media ini berada dalam domain awam di Amerika Syarikat. Ini sering diguna pakai di A.S. di mana hak cipta yang telah luput tarikhnya kebiasaannya disebabkan penerbitan pertama berlaku sebelum 1 Januari 1929. Sila lihat, laman ini untuk maklumat lanjut.	United States
	Imej ini mungkin berada dalam domain awam di luar Amerika Syarikat terutama di negara atau kawasan yang tidak mengamalkan peraturan jangka pendek (contohnya Tanah Besar China kecuali Hong Kong dan Macao, Kanada, Jerman, Mexico serta Switzerland). Pencipta dan tahun penerbitan imej ini merupakan maklumat penting dan mesti disertakan. Sila lihat Wikipedia:Domain awam dan Wikipedia:Hak cipta untuk maklumat lanjut.

Sejarah fail

Klik pada tarikh/waktu untuk melihat rupa fail tersebut pada waktu itu.

	Tarikh/Waktu	Gambar kenit	Ukuran	Pengguna	Komen
semasa	07:30, 26 September 2021		1,920 × 1,500 (1.31 MB)	Vort	better quality
	03:34, 22 Disember 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) '