The location of electromagnetic energy
Abstract
We compare several forms for the electromagnetic energy, and discuss under what conditions there will be electromagnetic energy in a specific volume. Our conclusion is that electromagnetic energy resides in charge and current densities, with electromagnetic energy density given by $u_{\rho{\bf j}}=\frac{1}{2}\left(\rho\phi+{\bf j\bcdot A}\right)$.
- Publication:
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arXiv e-prints
- Pub Date:
- July 2007
- DOI:
- 10.48550/arXiv.0707.3421
- arXiv:
- arXiv:0707.3421
- Bibcode:
- 2007arXiv0707.3421F
- Keywords:
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- Physics - General Physics
- E-Print:
- Some additional results were added