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Light Bulbs and Artificial Lighting
Artificial lighting has become standard in the homes and companies of most countries. It is used for concert effects, growing food, and reading a book in bed at night.
2,482 Questions
How much does night light cost?
a nightlight can cost a few dollars depending on the type of nightlight it is such as a bulb or sensor. the decor of the nightlight can be factored in the cost as well.
If you have brighter bulbs will the battery last longer or will it run down quickly?
That does not depend directly on the brightness of the bulb, it depends on the current drawn by the bulb (which depends on the efficiency of the bulb).
For example an incandescent bulb will draw much more current than a much brighter CFL bulb or LED bulb. Therefor switching to an brighter LED bulb can make the battery last much longer while switching to a brighter incandescent bulb will make the battery run down quicker.
What sound does a light bulb make when dropped?
Well usually a high pitched crashing sound like glass breaking
Light bulbs last an incredible long time so you just change them when they start to dim. To save energy and money you may want to switch to more environmentally friendly bulbs. They cost more at first but pays for itself in the long run.
What was the original shape of Edison's electric light bulb?
It was approximately the shape of a pear with a sharp point on the center of the large end where the glassblower had left a tube thru which the air could be removed using a vacuum pump. After the air was removed this tube was heated again to cause it to seal the vacuum inside the bulb and the extra length cut off leaving the sharp point.
It did not take long before (for safety) this tube was moved to the narrow end, where it could be covered by the metal screw in base leaving the large end smooth. This is the way all modern incandescent bulbs are made, however the shape of the wide end now comes closer to spherical than pear shaped (although modern incandescent bulbs can be obtained in nearly any shape: flame, globe, retro, cylinder, etc.).
Why do light bulbs light up in the microwave?
the heat caused by the waves in the microwave heat the light bulb enough that it causes the fillament to light. There is a chance that the light bulb could explode though so don't try this at home.
If one light bulb burns out but other light bulbs stay lit what type of arrangement is this?
That is a parallel circuit. Each bulb is wired directly to the power and not through each other.
A Christmas tree light set is an example of a series circuit, and often up to 3 series circuits in parallel. Because the sets are wired in parallel, a missing bulb in one of the series sets only affects that one set, and thus 2/3 of the lights may still work.
What is the purpose of an o-ring in a flashlight?
O-rings are usually found in water proof flashlights. The ring is used to keep the water from the electrical components in case the flashlight gets submerged in water.
Nikola Tesla four types of light bulbs?
First off, Nikola Tesla was brilliant. The Croatian-born engineer spoke eight languages, almost single handedly developed technology that harnessed the power of electricity for household use, and invented things like electrical generators, FM radio, remote control, robots, spark plugs, fluorescent lights, and giant machines that shoot enormous, brain-frying lightning bolts. He had an unyielding, steel-trap photographic memory and an insane ability to visualize even the most complex pieces of machinery the guy did advanced calculus and physics equations in his head, memorized entire books at a time, and successfully pulled off scientific experiments that modern-day technology STILL can't replicate. For instance, in 2007 a group of lesser geniuses at MIT got all pumped up out of their minds because they wirelessly transmitted energy a distance seven feet through the air. Nikola Tesla once lit 200 light bulbs from a power source 26 miles away, and he did it in 1899 with a machine he built from spare parts in the middle of the desert. To this day, nobody can really figure out how he pulled that off, because two-thirds of the schematics only existed in the darkest recesses of Tesla's all-powerful brain.
Of course, much like many other eccentric giga-geniuses and diabolical masterminds, Tesla was also completely insane. He was prone to nervous breakdowns, claimed to receive weird visions in the middle of the night, spoke to pigeons, and occasionally thought he was receiving electromagnetic signals from extraterrestrials on Mars. He was also obsessive-compulsive and hated round objects, human hair, jewelry, and anything that wasn't divisible by three. He was also asexual and celibate for his entire life.
Where can one purchase Cree LED light bulbs?
Cree LED light bulbs can be purchased online at Amazon or at Cree's homepage. They can also be bought at local home improvement stores like Home Depot, Lowe's, and Ace Hardware.
Where do light bulbs get destroyed?
If you mean literally destroyed, usually in places with bad weather, or gyms where balls may fly towards the ceiling mid-game and hit the light bulb, destroying it.
When a light bulb burns out, the filament (made of tungsten) eventually becomes so worn from being heated to high temperature, that it will break down and break the electrical circuit, making the bulb useless.
How to compare the brightness of the old light bulbs to the new energy effiecint bulbs?
Use a phone app like light meter which uses the camera to give a luminosity level.
How do you make electricity out of a light bulb fifth grade projects?
You would need tin foil ,3 volt battery and a bulb.First you wrap the tin foil around the battery and then attach the bulb your switch will be the opposite side where you place the bulb,if you press i will turn on and if you leave it will turn off.I hope that's helpful.
How many joules are used to produce light in a 10 watt light bulb?
'Power' is a rate; it simply tells us how much energy is being consumed per unit time. In SI, a 'watt' is a special name given to a 'joule per second'. So a 10-W lamp is consuming energy at the rate of 10 J/s (joules per second).
It is incorrect to say that 'power flows'. It's energythat 'flows', power simply tells us how quickly energy flows. You can think of 'power' as being equivalent to 'speed'; you would never ever say that 'kilometre per hour' flows, so you can't say that a 'watt' flows!
How is the step stool used in the task of changing a light bulb?
Light bulbs are often too high to reach, so stepping stools are used to add extra height in order to reach and replace light bulbs.
Does the 95 w GE Proline light bulbs take less energy than a standard 60 w bulb?
For low energy bulbs the usual saving in input energy is a factor of 5, so a 95 watt bulb should consume about 20 watts. However this should be shown on the box, if you have it.
How can you make one light bulb change different colors automatically with wiring?
A normal incandescent or fluorescent lamps can not change colors. Even an LED can not change color. But an LED can be designed to have a certain color. Color changing LED is actually a combination of of three LEDs encapsulated in one casing. By turning the LED on or off a combination of colors can be achieved.
Is a phonograph and a light bulb the same thing?
phonograph is a musical instrument. Phono means sound. Do you mean Photograph? That is a picture
Where can someone buy DLP bulbs?
Usually replacement DLP bulbs can be bought at local TV repair stores or warehouses in the area. Another option is to use the repair service of the brand of the device the bulb is needed for.
