How do electrons travel in a coiled compact fluorescent lamp?

In summary, fluorescent tube lamps (FTL) produce light by exciting atoms with bombarding electrons. Compact fluorescent lamps (CFL) are coiled versions of FTLs. The CFL's coiled shape does not hinder the flow of electrons, as the gas mixture inside is ionized by a strong electric field, allowing ions to conduct current and produce light.
  • #1
kimau79
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Fluorescent tube lamp (FTL), in very simple words, produces light from excitation of atoms due to bombardments of electrons. A compact fluorescent lamp (CFL) is a coiled-shaped version of FTL.

http://upload.wikimedia.org/wikipedia/commons/3/31/06_Spiral_CFL_Bulb_2010-03-08_(white_back).jpg

My question is, since CFL is coiled, how do electrons travel from one end to the other end? I mean, FTL is straight so there is no problem for electrons to travel in a straight line from one end to the other end, but how is that achieved in a CFL? Do the electric field in a CFL also automatically bend around the corner, so that electrons would bend and thus can travel from one end to the other end? How is that achieved in that case?

Thank you in advance.
 
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  • #2
These lamps contain a gas mixture under low pressure. Initially applying a strong electric field it is ionized in an avalanche-like process and afterwards ions conduct current in a similar fashion as liquid electrolytes.
 

FAQ: How do electrons travel in a coiled compact fluorescent lamp?

1. What is a compact fluorescent lamp (CFL)?

A compact fluorescent lamp, also known as a CFL, is a type of energy-efficient light bulb that uses a fluorescent tube to produce light. It is designed to replace traditional incandescent light bulbs and can provide the same amount of light using significantly less energy.

2. How does a compact fluorescent lamp work?

A compact fluorescent lamp contains a small amount of mercury vapor and argon gas inside a spiral-shaped tube. When electricity flows through the tube, it excites the gas particles, causing them to emit ultraviolet light. The ultraviolet light then reacts with a phosphor coating on the inside of the tube, producing visible light.

3. What are the benefits of using compact fluorescent lamps?

CFLs have several benefits, including energy efficiency, longer lifespan, and cost savings. They use about 70-80% less energy than traditional incandescent bulbs, last up to 10 times longer, and can save you money on your electricity bill in the long run.

4. Are there any drawbacks to using compact fluorescent lamps?

One potential drawback of CFLs is the small amount of mercury they contain. While the amount is very small and not a concern during use, it is important to properly dispose of CFLs to prevent any environmental harm. CFLs also take a few seconds to reach full brightness and may not be suitable for use with dimmer switches.

5. Can compact fluorescent lamps be used in any light fixture?

Yes, CFLs can be used in most light fixtures, including lamps, ceiling fixtures, and recessed lighting. However, it is important to check the fixture's label or manufacturer's instructions to ensure that it is compatible with CFLs. Some fixtures, such as enclosed fixtures, may not be suitable for use with CFLs.

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