File:Lord Kelvin quadrant electrometer engraving.jpg
Original file (797 × 1,465 pixels, file size: 235 KB, MIME type: image/jpeg)
Summary
[edit]Scanned from the book "Elementary Lessons in Electricity and Magnetism" by Silvanus P. Thompson. 1905 Edition.
The moving sector, a very light aluminum foil disk, is suspended by a fine metal wire F to the terminal C where it is charged by an auxiliary charge. A small mirror M is attached to the bottom of the suspended sector. The four fixed sectors are directly connected to the four terminals 1,2,3 and 4, shown here connected diagonally (1 to 3 and 2 to 4). Potential difference applied between terminals 1 and 2 will cause a deflection of the moving sector and the mirror.
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[edit] | This image is in the public domain in the United States. In most cases, this means that it was first published prior to January 1, 1929 (see the template documentation for more cases). Other jurisdictions may have other rules, and this image might not be in the public domain outside the United States. 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 | 05:12, 18 December 2010 | | 797 × 1,465 (235 KB) | Williamgelbart (talk | contribs) | Scanned from the book "Elementary Lessons in Electricity and Magnetism" by Silvanus P. Thompson. 1905 Edition |
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