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300px-Hall_effect.png (download)‎ (300 × 301 pixels, file size: 82 KB, MIME type: image/png)

SummaryEdit

Download high resolution version (984x986, 400 KB) This is a file from the Wikimedia Commons. The description on its description page there is shown below.

Shows the Hall effect for different directions of electric current and magnetic field. Created by Søren Peo Pedersen - see my user page at http://da.wikipedia.org/wiki/Bruger:Peo

Legend:

  1. Electrons (not conventional current!)
  2. Hall element, or Hall sensor
  3. Magnets
  4. Magnetic field
  5. Power source

In drawing "A", the Hall element takes on a negative charge at the top edge (symbolised by the blue color) and positive at the lower edge (red color). In "B" and "C", either the electric current or the magnetic field is reversed, causing the polarization to reverse. Reversing both current and magnetic field (drawing "D") causes the Hall element to again assume a negative charge at the upper edge.

This is a featured picture. We believe it is one of the finest images on the Wikimedia Commons. If you have an image of similar quality that can be published under a suitable copyright license, be sure to upload it, tag it, and nominate it. This image was selected picture of the day for October 19, 2005. In English, it was captioned "Hall effect".

LicenceEdit

I, the author of this work, hereby publish it under the following licence: GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License."

Rendered using POV-Ray (see http://www.povray.org). The scene description "code" shown below supports rendering all of the four "situations" portrayed in the image - see the comment given in the code. The four images were subsequently combined, and the numbers and letters added, in a graphics software package.

POV-Ray "code" for rendering all four parts of the illustration:

The Hall effect in metal under various circumstances

Appears on these pages
of

  • Hall effect

    The Hall effect refers to the potential difference (Hall voltage) on opposite sides of a thin...

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current00:46, February 16, 2006Thumbnail for version as of 00:46, February 16, 2006300 × 301 (82 KB)Dore chakravarty (Talk | contribs)==Summary== Download high resolution version (984x986, 400 KB) This is a file from the Wikimedia Commons. The description on its description page there is shown below. Shows the Hall effect for different directions of electric current and magnetic field.

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