“导体内无净电荷”演示实验甘肃张掖市一中张兴虎１．实验改线目的“处于静电平衡状态厂的导体，净电荷只能分布在导体的表面，导体内部无净中荷．”导体内部无净电荷一直是学生难以接受的．本实验通过对验电器的改装，将“导体内部无净电荷”直接用实验显示在学生面前，... “No net charge in conductor” demonstration experiment Zhangye Hu, Zhangye City, Gansu Province 1. The purpose of the experiment is to change the line “in the static balance of the plant conductor, the net charge can only be distributed on the surface of the conductor, there is no net charge and discharge in the conductor.” There is no net charge inside the conductor has always been difficult for students to accept. In this experiment, through the modification of the electroscope, the “no net charge inside the conductor” was directly displayed in front of the students by experiments...