File:Tesla Coil.jpg
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![File:Tesla Coil.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e1/Tesla_Coil.jpg/448px-Tesla_Coil.jpg?20140209222621)
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[edit]DescriptionTesla Coil.jpg | Tesla coil built by MIT student. A Tesla coil, invented by Nikola Tesla in 1891, is a spark excited resonant transformer circuit which generates high voltage radio frequency electric current al very low current levels. This example illustrates a common design used for entertainment displays. The primary of the coil is the flat spiral of thick red wire at bottom. Not visible under it are the other parts of the primary circuit; a high voltage step up transformer, spark gap and capacitor, which excite oscillations in the primary coil. The secondary winding is the narrow vertical cylinder wound with fine red wire. Connected to the top is the high voltage terminal; a torus made of spun aluminum. In operation, dramatic streamer arcs and brush discharges burst from the top terminal. The circle of copper tubing surrounding the primary is a grounded "arc rail" to prevent arcs from the high voltage terminal from hitting the primary. |
Date | |
Source | Ada's Technical Books |
Author | Jeff Keyzer from Austin, TX, USA |
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This image was originally posted to Flickr by mightyohm at https://www.flickr.com/photos/28042570@N08/8280472202. It was reviewed on 9 February 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
9 February 2014
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 22:26, 9 February 2014 | ![]() | 1,686 × 2,258 (1.18 MB) | Jacopo Werther (talk | contribs) | {{Information |Description=Tesla Coil |Source=[http://www.flickr.com/photos/mightyohm/8280472202/ Ada's Technical Books] |Date=2012-12-16 17:45 |Author=[http://www.flickr.com/people/28042570@N08 Jeff Keyzer] from Austin, TX, USA |Permission= |other_ver... |
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Camera manufacturer | Apple |
Camera model | iPhone 4 |
Author | Jeff Keyzer |
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Exposure time | 1/15 sec (0.066666666666667) |
F-number | f/2.8 |
ISO speed rating | 640 |
Date and time of data generation | 17:45, 16 December 2012 |
Lens focal length | 3.85 mm |
Online copyright statement | http://creativecommons.org/licenses/by-sa/3.0/ |
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Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Adobe Photoshop Lightroom 3.6 (Windows) |
File change date and time | 21:49, 16 December 2012 |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 17:45, 16 December 2012 |
APEX shutter speed | 3.906891 |
APEX aperture | 2.970854 |
APEX brightness | −0.51903553299492 |
Metering mode | Spot |
Flash | Flash did not fire, auto mode |
Sensing method | One-chip color area sensor |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 35 mm |
Scene capture type | Standard |
Date metadata was last modified | 13:49, 16 December 2012 |
Unique ID of original document | F289BC1CB2AFBCE91214D67D62B12E4A |
Copyright status | Copyrighted |
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IIM version | 4 |