About Poynting's theorem
I Campos; J L Jimenez
Журнал:
European Journal of Physics
Дата:
1992-05-01
Аннотация:
The authors review the general question of the physical interpretation of Poynting's theorem and compare two typical derivations of it. One of these uses the work done on a charge by an external electromagnet field, while the other considers the work done by the total field, external plus self-field; though this derivation is mathematically consistent, it leads to difficult problems of interpretation.
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