【摘要】 验电器是物理实验中常用的仪器,但人们对它的认识却不够准确,如:验电器工作时箔片张开的原因及验电器是量度电量还是电势差等问题。文章通过实验和理论推导对以上两个问题进行辨析。更多还原

【Abstract】 Electroscope is a commonly used instrument in physical experiments, yet people’s knowledge to it still remains imprecise. For instance, people are still not very clear about the reason why gold foils open while electroscope is working, and about whether it measures electric quantity or electric potential difference. This paper has made an analysis of these two questions by experiment and theoretical deduction.更多还原