It works in conjunction with the electric potential, electric charge and dielectric models, and requires a positiveelectrical conductivity of the fluid.
资讯科技和电位，电荷和介质模型一起工作，而且需要液体的一个积极导电系数。
2
When a suBstance has no net electricalcharge, the total numBers of positive and negative charges within it must just Be equal.