一、背景验电器是中学物理电学教学中十分重要的教具。中学实验室里我们所见到的验电器有锡泊验电器和指针验电器,它们都是根据同种电荷之间相互排斥的性质而制作的。由于正电荷之间和负电荷之间的作用力都是斥力,无论这种验电器上带的是正电荷 First, the background test electroscope is a very important teaching aids in physics teaching in middle school. The electroscopes we saw in the high school labs were tinplate electroscopes and pointer electroscopes that were made based on the mutually exclusive nature of the same type of charge. Because the positive charge and negative charge between the forces are repulsive, no matter this electroscope with a positive charge