静电计又叫电势差计或指针验电器,它是中学静电实验中常用的半定量测量仪器.人教版普通高中课程标准实验教科书《物理》选修3-1第30面用静电计测量已经充电的平行板电容器两极板间的电势差U,从而来探究平行板电容器的电容C与哪些因素有关的演示实验,与旧教材相比,不仅篇幅加大, Electrometer is also called potential difference meter or pointer electroscope. It is a semi-quantitative measuring instrument commonly used in secondary school electrostatic experiments. PEP Ordinary high school curriculum standard experiment textbook “Physics” Elective 3-1 30th surface with an electrometer to measure already charged The potential difference U between the two plates of the parallel plate capacitor is used to explore the relationship between the capacitance C of the parallel plate capacitor and the demonstration experiments. Compared with the old teaching materials, the space is not only increased, but also