A fluorescent lamp is a gas-discharge lamp that uses electricity to excite mercury vapor in argon or neon gas, resulting in a plasma that produces short-wave ultraviolet light. This light then causes a phosphor to fluoresce, producing visible light.
2007-12-23 05:42:41
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answer #1
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answered by Anonymous
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The tube is coated with mercury compound and evacuated then filled with inert gas like argon and sealed with one electrode at either end.The choke is used to step up the voltage and the starter is used for intermittent supply to initiate the process.The discharge between the two electrodes causes the coating to glow therin emitting light.The question should be what is the principle behind or of not mechanics since this ain't no machine -easy that's a joke.
2007-12-23 14:34:47
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answer #2
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answered by funman 3
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It is a tube filled with a gas that can sustain an electrical arc and that has its interior coated with a phosphor that will glow when exposed to the UV radiation of an arc. It often has a little heater at one end to heat the gas and make it easier to strike an arc.
It is used with a ballast which is a transformer that can apply a voltage high enough to create the arc and then can go to a voltage that will keep the arc going.
When you turn it on the ballast gets an arc going in the gas of the tube. The phosphor coating then glows from the radiation.
2007-12-23 13:45:17
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answer #3
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answered by Rich Z 7
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Main parts of fluoroscent tube light is 1, fluoroscent lamp 2,Ballast 3, starter.
As we give electrical supply, that pass to ballast to tube rod filament to starter to other side tube rod filament to electrical board. As supply pass in starter its bimetal strip will bend and breaks supply. As a result stored energy in ballast will released and momentary high voltage spike strikes to tube rod filament. Mercury vapour inside Tube rod filled with argon or neon gas will exite and creates plasma that produces short-wave ultraviolet light. This light causes a phosphor to fluoresce, producing visible white light.
Starter bimetal strip will close contact again when supply pass throgh tube rod
2007-12-24 03:19:31
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answer #4
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answered by S P Aghera 2
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Mel has the right answer. Zero and Rich are blowing smoke. Aku only explains part of the process. I really can't understand the need either lie or bs about knowing the answers.
Here's a link:
http://home.howstuffworks.com/fluorescent-lamp.htm
2007-12-23 13:53:35
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answer #5
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answered by dontpanic66 3
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http://home.howstuffworks.com/fluorescent-lamp.htm
2007-12-23 14:51:26
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answer #6
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answered by Anonymous
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The high voltage between cathode and anode ionises the gas in between which florescence and gives light.
2007-12-23 13:45:01
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answer #7
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answered by Anonymous
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it is filled with hydrogen gas, and when you turn it on, it agitates the gas, which makes it move and bounce the molecules against one another- causing friction, causing heat and light.
2007-12-23 13:43:56
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answer #8
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answered by zero 5
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