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静电场中,等量双电荷电场是既典型又具代表性的电场,了解其电场强度的分布情况,对理解概念、提高综合能力很有帮助.1.等量同种电荷(以正电荷为例)
In the electrostatic field, the equivalent double-charged electric field is a typical and representative electric field. It is helpful to understand the distribution of the electric field strength to understand the concept and improve the comprehensive ability. 1. The same kind of charge (positive charge example)