Lighting bulbs with magnetic fields

In summary, lighting bulbs with magnetic fields is a new and innovative technology that uses magnetic induction to create light. This process involves passing an alternating current through a wire coil, which generates a magnetic field that interacts with a tungsten filament inside the bulb, causing it to heat up and emit light. This method is more energy-efficient and longer-lasting than traditional incandescent bulbs, making it a promising alternative for lighting solutions. Additionally, the lack of a physical connection between the power source and the bulb reduces the risk of electrical hazards. Overall, lighting bulbs with magnetic fields has the potential to revolutionize the way we light our homes and buildings.
  • #1
rohanprabhu
414
2
This guy seems to have done something like that: http://gizmodo.com/361390/1301-florescent-bulbs-lit-solely-by-magnetic-fields

Now.. what i was thinking is that.. how could he have done that? The power lines carry alternating current all right and it's a changing current, so it produces a changing magnetic field near the ends of a given lamp.. but will that be enough to create an emf across the tube that can give out so much light?
 
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  • #2
Apparently it is. I wonder if he got permission from the power company to do that "art"...
 
  • #3
Even though it says magnetic fields, I think it's the E-field that actually doing it. The gradient from the power lines above to the ground below.
 

Related to Lighting bulbs with magnetic fields

Q: How do lighting bulbs work with magnetic fields?

Lighting bulbs work with magnetic fields through a process called electromagnetic induction. This is when an electrical current is generated by moving a conductor, such as a wire, through a magnetic field. In lighting bulbs, this current is used to heat up a filament or gas, causing it to produce light.

Q: What are the benefits of lighting bulbs with magnetic fields?

The main benefit of lighting bulbs with magnetic fields is energy efficiency. These bulbs produce light using less energy compared to traditional incandescent bulbs. They also have a longer lifespan, making them more cost-effective in the long run.

Q: Can any type of lighting bulb be used with magnetic fields?

No, not all lighting bulbs can be used with magnetic fields. Only certain types, such as CFLs and LEDs, have the necessary components to work with magnetic fields. Incandescent bulbs, for example, do not have the necessary technology to be compatible.

Q: Are there any potential drawbacks to using lighting bulbs with magnetic fields?

One potential drawback is the initial cost. These bulbs can be more expensive to purchase upfront compared to incandescent bulbs. However, as mentioned before, they are more energy-efficient and have a longer lifespan, which can offset the initial cost.

Q: Can magnetic fields from lighting bulbs be harmful?

No, the magnetic fields produced by lighting bulbs are not considered harmful. They are very low in strength and are not strong enough to cause any negative effects on humans or other objects in the vicinity.

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