|Feb18-07, 05:38 AM||#1|
Gas in cathode-ray experiment?
Which gas is used in cathode ray experiment by J.J. Thomson & Sir William?
The voltage they used was about: 15k-20k V
The pressure they used: < 0.1mm of Hg
The gas they used: ?
|Feb18-07, 07:00 AM||#2|
Apparently different gases were tried in cathode ray tubes at the time.
However based on the fact that Thompson used an evacuated tube (0.1 mmHg vs 1 atmosphere or 760 mmHg), the I would expect the gas was air.
|Mar3-07, 02:55 AM||#3|
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