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一、用气垫导轨演示电荷间的相互作用利用放在气垫导轨上的滑块具有活动灵活的特点,将一带电体放在滑块上,然后用另一带电体靠近它,根据滑块的移动就可非常清楚地观察电荷间的相互作用。具体演示方法如下: 实验装置如图1所示,其中1是调整在水平位置的气垫导轨,2是放在导轨上的滑块,3是放在滑块上的橡皮插座,4是外表面蒙有一层金刀属箔的乒乓球或灯草球(是一个绝缘导体)。
1. Demonstrate the interaction between charges by using air-guide rails. The slider on the air-guide rail has the characteristics of flexible activity, placing an electrically charged body on the slider, and then using another charged body near it, according to the movement of the slider. The interaction between the charges can be observed very clearly. The specific demonstration method is as follows: The experimental device is shown in Fig. 1, in which 1 is the air-cushion guide adjusted in the horizontal position, 2 is the slider placed on the guide rail, 3 is the rubber socket placed on the slider, and 4 is the outer surface of the slider A ping pong ball or lamp ball (an insulated conductor) with a gold foil foil.