抓住静电实验的主要矛盾邵成云（湖北省钟祥市一中，４３１９００）静电实验之所以难做，是因为它对实验的条件要求较高，受两个矛盾制约，一是空气湿度，二是仪器的绝缘性能．笔者在多年教学实践中得出，绝缘性能是静电实验的主要矛盾．为弄清谁是主要矛盾，我们曾做过多... Seizing the main contradiction of electrostatic experiments Shao Chengyun (Yixiang, Zhongxiang City, Hubei Province, China, 431900) The reason why the electrostatic experiment is difficult to do is because it imposes higher requirements on experimental conditions and is constrained by two contradictions. One is air humidity and the other is the instrument. Insulation properties. The author has learned in many years of teaching practice that insulation performance is the main contradiction in electrostatic experiments. To find out who is the main contradiction, we have done too much...