Glow_discharge_regions.jpg
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Summary
Description Glow discharge regions.jpg |
English:
A classic
glow discharge
in a
Crookes tube
, a glass
gas discharge tube
evacuated to a pressure of around 10
-5
- 10
-6
torr, with a metal electrode inside at either end. The glow is due to a voltage of several thousand volts applied between the electrodes, which causes the gas inside the tube to
ionize
, allowing a current to pass through it. The
cathode
(negative electrode) is on the left, the
anode
(positive electrode) is on the right. The regions of the discharge from left to right are:
|
Date | |
Source |
|
Author |
|
Other versions | Gas discharge.jpg |
Camera location | 49° 18′ 58.8″ N, 8° 32′ 39.6″ E | View this and other nearby images on: OpenStreetMap | 49.316333; 8.544333 |
---|
Licensing
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Creative Commons
Attribution-Share Alike 2.0 Generic
license.
-
You are free:
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Annotations
InfoField
|
This image is annotated: View the annotations at Commons |
217
396
79
292
3334
1380
Cathode glow
292
400
63
288
3334
1380
Cathode dark space
350
404
675
279
3334
1380
Negative glow
1025
404
763
279
3334
1380
Faraday dark space
1788
409
1275
275
3334
1380
Positive column
3059
417
58
267
3334
1380
Anode glow