摘要
对中性介质微粒在电场中荷电的物理过程进行了探索，对其电晕的产生、负离子分子的形成和介质微粒的荷电三个子过程的机理进行了描述；结合实验教学中几个重要问题建立了实验控制模型．
For the sake of collecting smoke particles in chimney, an experiment of small particles in strong electrostatic field is reported. Three stages, i.e. the production of corona, the formatin of negative ions and the negatively charged molecules are described and discussed.
出处
《大学物理》
1997年第10期33-35,共3页
College Physics
