导体球与点电荷

Electric Sphere and Needle Charge

讨论了导体球外存在点电荷时空间的电势分布、导体球表面的电荷密度、点电荷与导体球之间的相互作用力,结果给出即使导体球与点电荷带同种电荷也可以相互吸引。

The potential distribution in space, charge density, the interaction between the needle charge and electric sphere when the needle charge exists outside of the electric sphere were discussed. The results show that electric sphere and the needle charge can attractive each other, even if they carry homogeneous charge.