Arc Lighting

More Arc Lighting

FAQ about Arc Lighting

At what distance, in m, would two parallel plates in a home light switch induce an arc? At what distance, in m, would two parallel plates in a home light switch induce an arc (as they come together on switch closing) if there is a 120 volt difference between the plates? Given the ideal case:
Let the Dielectric Strength of air be 3MV/m:
Ds = 3*10^6 V/m = constant
If V = 120 V
120 V /x (m) = 3*10^6 V/m
Ideal air breakdown occurs at:
x = 120/(3*10^6) = 0.00004 m = 40 microns
If V = peak = 120*sqr(2) = 170 V
Ideal air breakdown occurs at:
x = 177/(3*10^6) = 0.000059 m = 59 microns
Many factors are being left out here: air humidity, inductive and
capacitive reactance, plate defects, temperature, air pressure,
potential gradient, the actual dielectric constant at closing time,
etc.

How many days does it take for light to travel from Arcturus to earth?What is the distance to Arc in light yrs? The star Arcturus is 3.50x10^14km from the earth. One light year is the distance light travels in one year(365 days) Light travels at a speed of 3.00x10^8 m/s Yep, toolkit is absolutely right.
You've got the figures and the equation
(hint, drop the trailing zeroes, and stick to MKS:
c~ 3x10^8 m/s, d~3.5x10^17 m)
A handy figure to remember is that there are roughly pi x 10^7 seconds in a year.
Job done.
Extra marks for including leap-years in your year-length.

In infamous if i play the game with good karma and then activate the ray sphere will i get arc lighting? And will arc lighting be at full power or did i have to play the 15 evil side Missions ? No you won't have arc lightning. You have to do the evil side missions. If you've already done all of the good side missions they you'll never get arc lightning (during that playthru) because when you complete a good side mission it cancels out the evil mission.

When was the electric arc -light system installed in Philadelphia and when was the arc-light invented? Brush Arc Lights Illuminate Cities


Brush Electric Light Station
The dynamo provided an economic and efficient source of electricity for the arc light and this was a key factor in developing a commercially viable system of lighting. With a functional dynamo in hand, Brush turned next to developing an arc lamp while simultaneously continuing with development of the dynamo. The arc light was not a new idea but those in existence at the time were not very practical, their chief drawback being the lack of a good regulating system for the carbon electrodes. Brush developed an arc light that was regulated by a combination of electrical and mechanical means, with a simple and easy maintain design. He installed his first commercial arc lamp on the balcony of a doctor's residence in Cincinnati in 1878, and before the end of 1881, Brush arc light systems were illuminating the streets of New York, Boston, Philadelphia, Baltimore, Montreal, Buffalo, San Francisco, and other cities.

How to make a balloon arc with lights? We know how to actually make the arc with helium filled balloons and string, but would tying them to christmas lights be okay? Or would that be too heavy? And if we do that... do you think that 3 arcs with christmas lights would be enough light over a dance floor at night? A tiny LED light is manufactured these days that is made to put inside of a latex helium filled balloon. Check party stores, professional balloon decorators, or comb eBay, as they are offered up for auction frequently nowadays. Try the keywords "balloon lights" for eBay and Google, and I am sure you will be overwhelmed with a choice of sources on where to obtain them. A string of conventional Christmas lights is way too heavy to be supported by an arch of helium latex balloons, and besides, the incandescent bulbs will be too hot and cause the balloon it is touching to burst. Even if the Christmas lights are LED, it still is too heavy due to the weight of the wiring. Let me know if you are successful!

would it be possible to make an arc reactor with lighting as the power source? because lighting has around 40 000 - 50 000 volts no because its not predictable.

How much brighter is an arc (light when welding) than the sun? I need to know how much brighter is an arc (the light you see when welding) than the sun. its not brighter than the sun. you can use a welding helmet with a # 10 shade and see the weld. but the sun is too bright for a #10 shaded lens.

Does the light from an arc flash recharge a solar powered welding helmet? I'm thinking about getting an auto darkening welding helmet and the one I'm looking at is solar. As my school welding shop is inside, it won't get much sun. I was wondering if the amount of light coming of of the arc flash is enough to power/recharge the lens. Most welders work indoors anyways, so you shouldn't have to worry about it. I have heard, however, that it is a bad idea to keep it in a dark locker right before you use it. I have heard that they do use batteries and if you keep it in the dark too long and weld right away, it wont have the power to darken.

What are the benefits of carbon arc lighting in medicine? I have seen it work wonders on my little girl's eczema,when nothing else would, but I want to know how it works? .None that I know of BUT you could get cataract's though looking at the light without Special protective goggles.

What causes an arc of white light in the rt. corner of the rt. eye? Do I need glasses? Eyes seem "tired".? I am 30 yo. and have never had an eye exam, or needed glasses. Always had great vision. Lately my eyes feel tired, have trouble focusing from near to far, left to right etc. And now the intermittent arc of light in my right eye. Is this something temporary, or is it time for glasses? It is time for an eye exam by an ophthalmologist. The most common cause for this arcing of light is vitreous traction on the retina. This can result in a retinal tear followed by a retinal detachment.
Seen early it is easy to fix.

Arc Lighting is from category: Flashlights.