在讲述“静电的危害和应用”一节中,我们在课堂和课外活动中进行了静电植绒实验。引起了同学们浓厚的兴趣,许多同学自制了书签、贺年片送给同学和老师,现将制法介绍如下: 1.将感应起电机的两极分别与演示用的平行板电容器相连。两板上下相对,井固定好。 2.将各色旧毛线剪成细屑并分别收集。 3.在卡片纸上用胶水画出图案,在卡片纸背面涂少许胶水,贴在上全属板上,图案对着下金属板。 In the section entitled “Hazards and Applications of Electrostatics”, we conducted electrostatic flocking experiments in classroom and extracurricular activities. The students attracted a lot of interest. Many students made bookmarks and sent New Year’s greetings to their classmates and teachers. The method of manufacture is introduced as follows: 1. Connect the two poles of the induction motor to the parallel plate capacitors for demonstration. The two plates are opposite and the wells are fixed. 2. Cut old colored yarns into fines and collect them separately. 3. Draw a pattern on the card paper with glue, apply a little glue on the back of the card paper, and attach it to the upper full board with the pattern facing the lower metal plate.