论文部分内容阅读
在讲摩擦起电一节中，用丝绸摩擦过的两根玻璃棒互相排斥实验很难做成。其原因是带电量少，即便是在干燥空气里摩擦后的玻璃棒也只能吸引少量的轻小物体，若空气稍有潮湿（如在教室）则很难看到带电现象。因带电量少作用力就小。若按书上装置去做，当玻璃棒受力稍有转动时吊线
In the section on frictional electrification, two glass rods that had been rubbed with silk were difficult to make by mutual repulsion experiments. The reason for this is that the amount of charge is small. Even a glass rod that is rubbed in dry air can only attract a small amount of light and small objects. If the air is slightly damp (as in a classroom), it is difficult to see the phenomenon of electrification. Due to less power, the force is small. If you press the device on the book, when the glass rod is slightly rotated