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Diese Grafik illustriert den Halleffekt unter verschiedenen Richtungen des Elektronenflusses/des Magnetfeldes.

Legende:

  1. Elektronen
  2. Hallsensor/-element
  3. Magneten
  4. magnetisches Feld
  5. Spannungsquelle

In Abbildung A wird im oberen Bereich ein Elektronenüberschuss (durch die blaue Farbe symbolisiert), im unteren Bereich ein Elektronenmangel (rote Farbe) erzeugt. In den Abbildungen B und C ist der Elektronenfluss bzw. der Magnet in eine andere Richtung gebracht worden, weshalb die Polarisierung des Hallelementes umgekehrt ist. Wird sowohl der Elektronenfluss, als auch das magnetische Feld umgekehrt (Abbildung D), entsteht wie in Abbildung A ein Elektronenmangel im unteren Bereich.

Wikipedia:Exzellente Bilder
Wikipedia:Exzellente Bilder
Diese Abbildung ist in die Liste der exzellenten Bilder aufgenommen worden.

Description

Shows the Hall effect for different directions of electric current and magnetic field.
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.

Rendered using POV-Ray. The scene description "code" shown below supports rendering all of the four "situations" portrayed in the image - see the comment given in the code in the page discussion. The four images were subsequently combined, and the numbers and letters added, in a graphics software package.

Source

own work

Date

2005-04-10

Author

Peo

Permission

see below

I, the author of this work, hereby publish it under the following license:
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".

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Featured picture 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.
Picture of the day This image was selected as a picture of the day for October 19, 2005. It was captioned as followed:
English: Hall effect
Deutsch: Illustration des Hall-Effekts
Français : L'effet Hall illustré
Español: Ilustración del efecto Hall

Aragonés: Efeuto Hall
Česky: Hallův jev
Deutsch: Illustration des Hall-Effekts
English: Hall effect
Español: Ilustración del efecto Hall
Eesti: Hall'i effekti illustratsioon
Français : L'effet Hall illustré
Galego: Efeto Hall.
日本語: ホール効果
Latina:
Nederlands: Illustratie nl:Hall-effect
Polski: Efekt Halla
Português: Diagrama do efeito Hall
Русский: Эффект Холла
Slovenščina: Hallov pojav
简体中文: 哈尔效应示意图

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