File:Thermodynamics and positive resistance.svg
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Summary[edit]
DescriptionThermodynamics and positive resistance.svg |
English: Drawing illustrating flow of power in the operation of an ordinary positive resistor. Electric current enters the positive voltage terminal of the resistor and leaves through the negative terminal. Therefore the electric charges move in the direction of lower potential energy, doing work on the resistor. Electric power from the circuit is converted into heat by the resistor, which is dissipated in the surrounding environment, raising its temperature. This is an irreversible process, increasing entropy. A negative static resistor (illustrated in companion image Thermodynamics and negative resistance.svg) cannot function like this in reverse, converting heat from the environment into electric power, because it would violate the second law of thermodynamics, which says that heat cannot be converted into work from a single heat reservoir; a temperature difference is required. So a negative static resistance must be an active device, with a source of power. |
Date | |
Source | Own work |
Author | Chetvorno |
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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.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:53, 9 May 2013 | 896 × 560 (20 KB) | Chetvorno (talk | contribs) | Changed region representing the "surroundings" from a black outline to a grey region with fuzzy edges | |
23:01, 7 May 2013 | 902 × 566 (20 KB) | Chetvorno (talk | contribs) | {{Information |Description ={{en|1=Drawing illustrating flow of power in the operation of an ordinary positive en:resistor. Electric current enters the positive voltage terminal of the resistor and leaves through the negative terminal. There... |
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