因陋就简做物理实验,对地处农村的学校来说,特别感到有必要。这里,我们介绍两件用香烟铝箔制的教具,它有花钱少、容易制作、实验效果明显等优点,供大家参考。一"左手定则刀演示器取几张香烟铝箔*,在平玻璃板上展平待用。将其中两整张铝箔分别紧紧卷在两支国铅笔杆上,做成两根导电轨道,如图1中的1。为了避免卷 As a result of Jane’s physical experimentation, it was particularly felt for schools located in rural areas. Here, we introduce two teaching aids made of cigarette aluminum foil, which have the advantages of less money, easy production, and obvious experimental results, for your reference. A “Left hand ruler demonstrator takes several cigarette aluminum foil* and flatten it on a flat glass plate. Two of the aluminum foils are rolled tightly on two pencil rods to make two conductive tracks. , as shown in Figure 1. To avoid the volume