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电荷守恒[Conservation of Charge]

   Ω〖物理〗2005-3-29 14:3
In all known processes in nature, the total amount of a charge in a system has been observed to remain constant
Conservation of charge requires that the area integral over a current density J be equal to the change in charge within the volume of integration, and that both equal the net current I,

where is the charge density.
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