The characteristic time of electrostatic equilibrium process in decided by conductivity and permittivity of material.
静电平衡过程的特征时间由物质的电导率和电容率决定。
So far both the formula for energy of line charge and the condition of electrostatic equilibrium have not been directly derived from the current electromagnetism.
现行的电磁学对线电荷的能量公式、静电平衡条件都没有直接推导过。
In this paper, Guass theorem is mainly used to discuss the electric field intensity on the surface of charged conductor on condition of electrostatic equilibrium.
本文在静电平衡条件的基础上，应用高斯定理讨论带电导体表面的电场强度。
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