The only difference between these two cells was that in Lenard's cell the electrons were taken from the cathode by light, whereas on the "3-electrode lamp" the cathode is a white-hot filament capable of sending into the vacuum currents of much higher intensity.

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A filament that emits electrons thermionically may be disposed around the rod in close proximity to the cathode.

一發(fā)射熱電子化電子的絲極在靠近陰極處安裝在支撐桿周圍。

In ancient times, when vacuum tubes were still in use, the A battery (often about 6 volts) heated the filament or cathode to boil off electrons, the B battery, positive with respect to the cathode, sucked the negative electrons to the plate, while the C battery, a few volts negative with respect to the cathode, tended to repel the electrons back toward the cathode.

古時候亚洲欧美日韩区中文字幕，還在使用真空管時a和黄色网站，A電池（通常為6V）通過加熱燈絲或陰極來蒸發(fā)電子，B電池国产一级aⅴ无码免费，正極連接陰極一级黄毛片4466网站，將負電子吸引到極板上，而C電池日韩免费爱插摸视频，只有幾伏欧美性站，負極連接陰極囯产黄色在线视频，將電子擊回陰極。