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静电的最大危害是有可能因静电火花点燃某些易燃物质,从而引起火灾甚至爆炸.学生对这一介绍非常感兴趣,课余总喜欢拿一张纸放在感应起电机的两个带电球之间,希望看到静电火花将纸点燃,结果却大失所望,以致于觉得上述说法有点危言耸听.由此诱发了我设计一个“静电火花引起火灾”的演示实验的想法。经过不
The biggest danger of static electricity is that it may ignite certain flammable substances due to static electricity sparks, which may cause fire or even explosion. Students are very interested in this introduction. After school time, they always like to take a piece of paper and put them on the two charged balls of the induction motor. I hope to see the static spark ignited the paper and the result was so disappointing that I found the above statement somewhat alarmist. This led me to the idea of designing a “static fire-induced spark” demonstration experiment. After not