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Vol.1 , No. 3, Publication Date: Sep. 22, 2014, Page: 24-28
| [1] | Tsao Chang, Department of Nuclear Science and Technology, Fudan University, Shanghai 200433, China. |
| [2] | Jing Fan, Department of Electronics and Electrical Engineering, Nanyang Institute of Technology, Nanyang, China. |
In the case of DC circuit, electrons are driven by the electric potential difference in the wire; the electric potential energy is then converted to kinetic energy. Experiments show that Poynting vector is just a mathematical definition in the DC case. Since it does not form real energy flow, there is no transmission of electromagnetic energy flow from the exterior to the interior of metal wire. Therefore, DC power is transmitted entirely within the metal wire. In this paper, it also shows a preliminary experimental result of the redistribution speed of the electric field.
Keywords
Electrical Longitudinal Field, Poynting Vector, Speed of the Electric Field, DC Circuit
Reference
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