如图所示,用静电计可以测量已充电的平行板电容器两极板之间的电势差u,现使b板带正电,则下列判断正确的是 A.增大两极板之间的距离,静电计 Template




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tomski如图所示,用静电计可以测量已充电的平行板电容器两极板之间的电势差u,现使b板带正电,则下列判断正确的是 a.增大两极板之间的距离,静电计 coloring