用泡沫塑料模拟静电平衡现象应城市蒲阳中学张仁义（４３２４００）泡沫塑料极易带电，带电后其电荷经久不散失，而且泡沫塑料小颗粒在煤油（最好是蓖麻油）上能自由漂动。这样用煤油摸拟金属导体，用带电后的泡沫塑料小颗粒摸拟自由电子，我们就可以直接＂观察＂到静电平... Simulation of Electrostatic Equilibrium with Styrofoam Should be in City Puyang Middle School Zhang Renyi (432400) Foam plastics are highly charged, their charge will not be lost after being charged for a long time, and small foam plastic particles can float freely on kerosene (preferably castor oil). . In this way, kerosene is used to simulate the metal conductor, and after the charged foam particles are used to simulate free electrons, we can directly “observe” the electrostatic level...