摘要
用高压电源给空心球充电的方法,使两个球体带上异性电荷,由于异性相吸的原理使刚性轴上的小球摆动,其摆动周期与吸引力的大小有关.采用这种方法验证了异性电荷库仑平方反比率.
The hollow metal balls are charged with unlike charges by using high D V power , and the inverse square Coulomb's law of force is demonstrated through measuring the period of the swing related to the attractive force if one of the balls at the end of a rigid staff swings horizontally. The device involved is simple and economical.
出处
《黑龙江大学自然科学学报》
CAS
1992年第2期85-88,84,共5页
Journal of Natural Science of Heilongjiang University
关键词
库仑定律
静电力
点电荷
Coulomb's law, electrostatic force, point charge
