File:Proximity effect - current in same direction.svg
Original file (SVG file, nominally 987 × 817 pixels, file size: 32 KB)
Summary
| Description |
English: Diagram of two adjacent wires carrying an alternating (AC) electric current (I, red arrows) in the same direction, showing the origin of proximity effect. Proximity effect is a redistribution of current in a AC current-carrying conductor, due to currents induced by the time varying magnetic field of an adjacent conductor from Faraday's law of induction. In parallel wires carrying current in the same direction it causes the current to concentrate on the far side of the conductor, away from the neighboring conductor. It is caused by the magnetic field (B, green arrows) of the adjacent wire.
The drawing shows the currents and magnetic field at a point in the AC cycle when the current is increasing. The time varying magnetic field from the lefthand wire passes through the righthand wire, creating circular eddy currents (E) in the wire. During the part of the AC cycle when the current is increasing the eddy currents circle in a clockwise direction as shown, increasing the current density on the right side of the wire (2) and decreasing the density on the left side (1). The resulting current density profile is shown by the red arrows, and color gradient on the cross section of the wire (3), with blue indicating lower current density, and green, yellow, and red progressively greater current density. During the other half of the cycle while the current is decreasing, the eddy currents are in a counterclockwise direction, reversing the current. Español: Diagrama de dos conductores adyacentes por los que circula una corriente eléctrica (I), mostrando el origen del efecto proximidad. El efecto proximidad es una redistribución de la corriente hacia el lado del conductor adyacente. Es causado por el campo magnético (B) del conductor adyacente. El dibujo muestra las corrientes y el campo magnético en un punto del período de la corriente alterna en que la intensidad de corriente aumenta. El campo magnético variable del conductor de la izquierda atraviesa al conductor de la derecha, creando corrientes de Foucault (E) en este. Como se muestra, las corrientes de Foucault incrementan la densidad de corriente en el lado izquierdo del conductor (1) y reducen la densidad en el lado derecho (2). También se muestra el perfil de la densidad de corriente resultante (3). |
| Date | |
| Source | Own work |
| Author | Chetvorno |
| Other versions | Proximity effect - current in opposite directions.svg shows the case in which the current in the two wires is in opposite directions |
| SVG development |  This diagram was created with Inkscape.  This diagram uses embedded text that can be easily translated using a text editor. |
Licensing
 
|
This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
|
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:37, 14 July 2023 | | 987 × 817 (32 KB) | wikimediacommons>Chetvorno | Slightly altered fill color |
File usage
There are no pages that use this file.
