Difference between revisions of "Energy and Momentum in Electrodynamics"
Jump to navigation
Jump to search
(Imported from text file) |
(Imported from text file) |
||
| Line 12: | Line 12: | ||
==Abstract== | ==Abstract== | ||
| − | <em>The<sup><span style="FONT-SIZE: x-small"> </span></sup>distinction between kinetic and potential energy has never been made<sup><span style="FONT-SIZE: x-small"> </span></sup>clear in classical electrodynamics (CED). The long-range fields of CED<sup><span style="FONT-SIZE: x-small"> </span></sup>carry potential energy only because of their intimate connection with<sup><span style="FONT-SIZE: x-small"> </span></sup>the force laws. However, kinetic energy and momentum, which represent<sup><span style="FONT-SIZE: x-small"> </span></sup>mass in transport, are particle not field properties and hence<sup><span style="FONT-SIZE: x-small"> </span></sup>cannot be described by the fields of CED. It is<sup><span style="FONT-SIZE: x-small"> </span></sup>therefore clear that the Abraham ?momentum density?</em> <img border="0" alt="epsilon" align="bottom" src="http://physicsessays.aip.org/stockgif3/egr.gif" /><sub><span style="FONT-SIZE: x-small">0</span></sub><b>E</b> ? <b>B</b>,<sup><span style="FONT-SIZE: x-small"> </span></sup>''cannot represent mass density in transport''[[Category:Scientific Paper]] | + | <em>The<sup><span style="FONT-SIZE: x-small"> </span></sup>distinction between kinetic and potential energy has never been made<sup><span style="FONT-SIZE: x-small"> </span></sup>clear in classical electrodynamics (CED). The long-range fields of CED<sup><span style="FONT-SIZE: x-small"> </span></sup>carry potential energy only because of their intimate connection with<sup><span style="FONT-SIZE: x-small"> </span></sup>the force laws. However, kinetic energy and momentum, which represent<sup><span style="FONT-SIZE: x-small"> </span></sup>mass in transport, are particle not field properties and hence<sup><span style="FONT-SIZE: x-small"> </span></sup>cannot be described by the fields of CED. It is<sup><span style="FONT-SIZE: x-small"> </span></sup>therefore clear that the Abraham ?momentum density?</em> <img border="0" alt="epsilon" align="bottom" src="http://physicsessays.aip.org/stockgif3/egr.gif" /><sub><span style="FONT-SIZE: x-small">0</span></sub><b>E</b> ? <b>B</b>,<sup><span style="FONT-SIZE: x-small"> </span></sup>''cannot represent mass density in transport'' |
| + | |||
| + | [[Category:Scientific Paper|energy momentum electrodynamics]] | ||
[[Category:Electrodynamics]] | [[Category:Electrodynamics]] | ||
Revision as of 10:21, 1 January 2017
| Scientific Paper | |
|---|---|
| Title | Energy and Momentum in Electrodynamics |
| Author(s) | D E McLennan |
| Keywords | kinetic energy vs potential energy in classical electrodynamics, lack of support for field momentum |
| Published | 1988 |
| Journal | Physics Essays |
| Volume | 1 |
| Number | 3 |
| Pages | 179-183 |
Abstract
The distinction between kinetic and potential energy has never been made clear in classical electrodynamics (CED). The long-range fields of CED carry potential energy only because of their intimate connection with the force laws. However, kinetic energy and momentum, which represent mass in transport, are particle not field properties and hence cannot be described by the fields of CED. It is therefore clear that the Abraham ?momentum density? <img border="0" alt="epsilon" align="bottom" src="http://physicsessays.aip.org/stockgif3/egr.gif" />0E ? B, cannot represent mass density in transport
