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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

Is 8 people enough to change a light bulb?

Eight people are more than enough to change a light bulb. Usually one person is needed.

How does a light bulb's wattage affect the heat detected above a light?

A higher wattage light bulb will produce more heat, which can result in higher temperatures being detected above the light fixture. Low wattage bulbs will produce less heat, leading to lower temperatures above the light. It's important to consider heat output when selecting light bulbs for specific applications.

How many lumens per watt?

161 lumens

I believe the above answer to be inaccurate.

It depends on the light source.

For example: For an incandescent light bulb 1 watt it is approx. 18 Lumens.

However most LED's use only about 10% the wattage to produce the same amount of light. So for LED's .1 watt produces 18 Lumens.

What is of light-bulbs measured in?

The brightness of light bulbs is typically measured in lumens. Wattage can also be used as a general indicator of brightness, but lumens provide a more accurate measurement of the actual amount of light produced by a bulb.

Can potatoes light light bulbs?

They sure can. You might need a nail and a penny, but a potato can power a lightbulb.

A gas used in house light bulbs?

Argon. As an inert gas, it makes the filament last longer. Some light bulbs also use Krypton.

Will a fluorescent light bulb burn brighter than an incandescent one?

Fluorescent light bulbs are typically more energy-efficient and produce more light for the same amount of power compared to incandescent bulbs. So, a fluorescent light bulb may appear brighter than an incandescent bulb with the same power rating.

What does a light bulb radiate?

A light bulb radiates visible light when an electric current passes through its filament, causing it to glow and produce light.

What makes a light bulb actually light?

A light bulb lights up when an electrical current passes through its filament, which causes it to heat up and produce light due to incandescence. The filament is usually made of tungsten, which has a high melting point and is able to emit light at high temperatures.

Who invented the first incandescent light bulb in 1800?

The first practical incandescent light bulb was invented by Thomas Edison in 1879, not in 1800. Edison's light bulb was able to provide long-lasting and safe indoor lighting, revolutionizing the way we illuminate our homes and buildings.

When more light bulbs are added in parallel to a circuit what happens to the total resistance of the circuit?

When more light bulbs are added in parallel to a circuit, the total resistance of the circuit decreases. This is because in a parallel circuit, the reciprocal of the total resistance is equal to the sum of the reciprocals of the individual resistances. More paths for current to flow mean less overall resistance in the circuit.

How a light bulb works?

A light bulb works by passing electricity through a filament, which heats up and produces light due to the high temperature. The filament is housed in a vacuum-sealed glass bulb to prevent oxidation. As the filament glows, it emits light, providing illumination.

Why is the filament in a light bulb coiled?

The coiled filament in a light bulb is designed to maximize its surface area for heat and light production while taking up minimal space. The coil shape also helps increase its resistance, allowing the filament to glow brightly when electricity passes through it.

Why was the light bulb made?

The light bulb was invented to provide a reliable and convenient source of artificial light, replacing more dangerous and less efficient options like candles and gas lamps. It revolutionized the way we illuminate our surroundings and significantly improved safety and quality of life.

What inert gasses are used in light bulbs?

Certain light bulbs are gas filled. Consider Xenon and Neon bulbs. The ideal for a filament bulb is to use a vacuum bulb, however, inert gases can also be used. The point is to avoid the rapid oxidation that occurs at high temperatures in the presence of air.

What is the purpose of the incandescent light bulb?

The purpose of the incandescent light bulb is to produce light by passing electricity through a filament, which heats up and emits light. It was one of the first commercially successful ways of producing light and has been widely used for decades in various applications. However, due to its inefficiency in converting electricity to light and low lifespan, it has been largely replaced by more energy-efficient lighting technologies such as LED bulbs.

Why are light bulbs filled with argon and not air?

Light bulbs are filled with argon instead of air because argon is an inert gas that helps prevent the filament from oxidizing and burning out quickly. Air contains oxygen, which can cause the filament to degrade faster due to oxidation. Argon creates a more stable environment inside the bulb, prolonging the life of the filament.

Can one replace a tungsten bulb with a compact fluorescent bulb?

Yes, if it fits the socket and the light fitting, or lamp fixture, with its cover or shade.

You will not be able to dim the compact fluorescent as you did the incandescent (unless you have a really fancy dimmer).

What influenced Thomas Edison to invent a light bulb?

Thomas Edison was influenced to invent the light bulb through his fascination with finding a practical and efficient way to bring light to homes and businesses. He was also motivated by the challenge posed by the constant need for candles and oil lamps, seeking a solution that would improve the quality of life for many people. Additionally, Edison drew inspiration from the work of other inventors who had been experimenting with electric lighting technology before him.

The element found in cheaper light bulbs?

Cheaper light bulbs often contain tungsten as the filament material. Tungsten is a cost-effective option for producing light bulbs because of its ability to withstand high temperatures and its long lifespan.

What is the metal in domestic light bulbs?

The metal used in domestic light bulbs is typically tungsten. Tungsten has a high melting point and is able to withstand the high temperatures generated by the electric current passing through it, making it ideal for use in light bulb filaments.

A gas that is used in light bulbs?

The gas used in most light bulbs is nitrogen or argon. These inert gases help to prevent the filament in the bulb from oxidizing and burning out quickly. Some specialty bulbs may also use krypton or xenon gases to produce different colors or intensities of light.

Do the energy saving light bulbs cause headaches?

I'm suprised there hasn't been more of a response to this question.

On the 30th August 2009, a Europe-wide ban on traditional incandescent bulbs began its roll out, starting with a ban on 100W bulbs and old-style frosted or pearled bulbs.

So, IF these bulbs trigger migraines, then there's going to be tears before bedtime, isn't there?

http://www.dailymail.co.uk/sciencetech/article-505571/Energy-saving-bulbs-cause-migraines-warn-experts.html

Why did Thomas Edison create the light bulb?

Mankind has survived thousands of years without the light bulb. We could survive without it now. Thomas Edison was known to mainly improve ideas of others. He was a hard worker and never gave up on his experiments. The electric light was another idea he was going to solve.

Which gas is used in electric bulbs?

Incandescent light bulbs use a combination of gases: argon and nitrogen. These gases help prevent the filament inside the bulb from evaporating too quickly, increasing the bulb's lifespan. LED bulbs do not use gas but instead rely on semiconductor technology to produce light.