In this paper, the effects of the cathode voltage VF, the first grid-voltage VGl, and the repulsion voltage VG2A etc. on the IA-VG2K curves of the Ar-filled Franck-Hertz tube are discussed, there-by determine the optimized parameters of the Franck-Hertz experiment.%分析了弗兰克-赫兹管中灯丝电压V F、第一栅极电压V G1K、拒斥电压V G2A对实验曲线的影响,进而探讨弗兰克-赫兹实验的最佳实验条件,得到了一些有价值的规律,对实验有一定的指导作用。
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