How hot is bulb filament?

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Bulb filament can reach temperature from 3410 degrees Celsius to 6300 degrees Celsius.

No it can't.

I think you're totally mistaken about how hot a filament can get. First of all, the temperature of a filament can't go above it's melting point. Secondly, I read that Tantulum Hafnium Carbide has the highest melting point of any known substance at 4215 degrees C.

Besides, bulbs have a tungsten filament which has a melting point of 3422 C. It's slightly possible that for some bulbs, they mix tungsten with something else to raise the melting point but since nothing has a higher melting point than Tantulum Hafnium Carbide, the filament can't possibly get hotter than 4215 C by being 6300 C.
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What bulbs do not have filament And how do they light up?

ANSWER: . Flourescent bulbs. They have no filament and they light up. They have argon gas and a small amount of mercury in them. When electricity is added, the argon and mercury atoms get excited and collide against each other and create light. The light is ultraviolet light and if the bulb is no ( Full Answer )

Why the filament in a bulb lights up?

because filaments are generally good conductors of heat , so the filament burns first and then gets heated up and then gives light.

How hot is the filament of a lightbulb?

Actually The filament of a light bulb can get up to about 810.5 degrees Celsius. Also it was invented in 1352 by a dinosaur named Ronald McDonald. It is his birthday today! I bought him a hot DOG!

What are light bulb filaments made of?

Incandescent light bulbs have filaments which are made mainly from the element tungsten and/or alloys which include tungsten. Tungsten is the metal element used for the filaments in incandescent light bulbs. Experiments were made with different materials to use as the filament, includin ( Full Answer )

Why Does the filament in a bulb light up?

\nbecause it get very hot from resistive heating, is the simplest explantion.\n. \nIn a bit more detail, an incandescent object emits electromagnetic radiation in a band of frequencies determined by Planck's law. The filament is hot enough for the radiation to be in the visible band.\n. \nfor more ( Full Answer )

How hot does a filament light bulb get?

\n. \n. \nHot, really hot. Typically in the range of about 2000C to 2500C (3600F - 4500F).\n. \nIt would be pretty difficult to directly measure the temperature of the filament so you have to use something other than a thermometer for the measurement.\n. \nIt should be possible to estimate the t ( Full Answer )

What element is used in light bulb filaments?

Tugsten No, its Neon. like Neon signs actually its not neon because neon is used for neon lights the questions states what is used in light bulb filaments not neon lights.

What is light bulb filament?

It is the extremely thin wire inside the bulb. It is so thin that when the electricity goes through produce light, when that filament breaks the bulb is not good.

How is the filament of a light bulb a resistor?

Most simple incandescent light bulbs are made of a thin section of tungsten through which the current flows. This section of tungsten is called a "filament". The tungsten filament has electrical resistance and so is a resistor. As a resistor it develops a voltage drop. This voltage drop multip ( Full Answer )

Is bulb filaments a conductor or insulator?

Bulb filaments are high resistance conductors. They must be conductors to let the electric current thru but they must also offer enough resistance so the filiment gets hot enough to glow.

What is filament of light bulb made of?

Filament of bulb is made up of Tungsten. perfect answer: filament of bulb made of tungsten because of its melting point tungsten s m.p. is 3422 c and it produces through a method called extrusion process and due to its high melting point it do not melt due to heat. thnx if any1 have some general kno ( Full Answer )

What is a filament bulb?

A bulb that is lit up by using a piece of very thin wire coiled round that has electricity flowing through it very fast which causes it to heat up and is so hot that it glows white. This is why filament bulbs are not very efficient as they produce so much heat which is just not needed and is wasted. ( Full Answer )

How do filament bulbs work?

Everything above absolute zero gives off radiation. We can only see a small fraction of that radiation. Some snakes see heat that we can see only with special equipment. Some insects see ultraviolet which we also need special equipment to see. We see the radiation in the colors that the sun gives of ( Full Answer )

What is a filament light bulb?

the filament is the metal peice in a bulb that glows.Tungsten is most often used in a lightbulb.

How do electrons get to the filament of the light bulb?

The lattice structure of metals (copper in wire) means that electrons are delocalised. This allows the electrons to move freely through the wire and various other metal components until it reaches the metal filament of the light bulb.

What are carbon filaments for light bulbs?

Modern light bulb filaments are usually Tungsten not Carbon.However early bulbs used things like silk coated with Carbon.Filament means thin thread. The bulbs are filled with inert gaslike Argon to stop the filament from burning up with oxygen. Arclamps use Carbon rods though.

Why are filaments of bulb coiled?

They have to be coiled in order for them to be long enough to produce enough heat, which produces the light in a small space. Otherwise the light bulb would have to be much larger. A filament bulb is coiled to allow a much longer filament to fitinto a tiny space. It also reduces the amount of gas wh ( Full Answer )

What filaments are in light bulbs?

Usually Tungsten. Carbon filaments were used first, but scientists found that tungsten works for a far longer time period. Unfortunately, most filaments designed today don't last near as long as the bulb is rated at. Just put a dated replacement sticker on a light bulb and see when the next time you ( Full Answer )

Is there a filament in an energy saving light bulb?

No, they work by passing an electric current through a noble gas which creates the light. . Actually CFLs do have 2 small starter filaments but they are turned off automatically once the bulb starts. Also the noble gas (usually argon) is inert and generates no light, what produces the light is a ( Full Answer )

What is filament in a bulb?

The filament is the small coil that glows when the bulb is on. I believe its made out of tungsten

Why is a filament bulb not filled with oxygen?

Light in a lightbulb is produced by running a current through a wire with a high resistance. This creates a lot of heat, which when hot enough creates light. Imagine heating up a piece of steel until it glows. If the bulb was filled with oxygen, the tungsten filament would burn before it ever got ( Full Answer )

Why is a light bulbs filament long and thin?

The first thing you have to look at for this is the equation for resistance in an object which is R = rho(L/A) where rho is a constant and L is length and A is cross sectional area. Given this equation it should seem that a filament has a high resistance and should not be bright, but the reason it i ( Full Answer )

What gas and filament is in an incandescent light bulb?

Most common house hold light bulbs are really just evacuated to really low pressures and contain a tungsten filament. the reason being is that tungsten has high resistivity and low corrosive properties. they used to use carbon in the beginning. the reason for the vacuum is to prevent evaporation of ( Full Answer )

Why is the filament of a light bulb made from tungsten?

Edison tried many different materials to invent a light bulb that works. After 1,000 failures he finally found tungsten worked best. Because of the heat, out of all the metals, tungsten has the highest melting point. . Correction: Edison arrived at carbon, not tungsten. Tungsten was first used i ( Full Answer )

Is a light bulb filament as hot as lava?

The filament of an incandescent light bulb is actuallysignificantly hotter than lava. Temperatures may exceed 4,000degrees in some bulbs.

Why do bulb filament not burn?

In a conventional incandescent light bulb, the filament does not burn partially because the bulb is filled with an inert gas that will not allow combustion (typically argon), and partially because the current is just below the level that will cause the filament to rupture. Tungsten was found to be t ( Full Answer )

Why is filament of bulb kept in vacuum?

The filament is kept in a vacuum because it is made of steel wool. When electricity runs through steel wool, it lights up. However, if any oxygen is present, it will catch fire.

Why does the light bulb not work when the filament is broken?

A light bulb works by passing an electric current through the filament, which is usually made from a high resistance substance such as tungsten. When the current flows through, the filament glows which produces the light. When it burns out, no electricity passes and no glowing occurs. Source: i just ( Full Answer )

Why the filament of a bulb is made of tungsten but not of copper?

Because when heated, copper would react with the oxygen in the airand oxidise. Tungsten is not as reactive (I think, but check). Ithink Argon can also be used as a light bulb filament. Tungsten has a higher melting point than all other metals (3422degrees C) and a very low coefficient of expansion, ( Full Answer )

How does a filament bulb produce light?

An electric current flows through the filament which is usuallymade of tungsten because its melting point is the highest of allmetals. The filament heats to around 3000 degrees C and becomesincandescent, radiating heat and light by what is technicallycalled black body radiation.

How long does a filament light bulb last?

It varies and the life of a bulb should be given on the packaging. Typical life of a normal bulb is 1000 hours, but it is possible to buy bulbs with 2000 or 3000 hour lifetime.

What is the conductance of the filament of the bulb?

Its highly resistive to current flow, that means its very low in conductivity of current and talking quantum mechanically accelerated free electron in wires reaches filament and encounters high resistance in molecular structure of filament to move ahead, which results in transferring of its kinetic ( Full Answer )

Why do light bulbs use a thin filaments?

Light Bulbs rely on high resistance to generate heat and ultimately produce light. When you increase the cross sectional surface area (thickness) of the filament, you are reducing the resistance and will produce less light. The key is to find a balance between high resistance and durability.

Why tungsten is used in filament bulb?

It conducts electricity and has a very high melting point, thus itwill not melt in high temperatures in light bulbs. In fact,tungsten has the highest melting point of all metals, at about 3400degrees celcius.

What does the filament inside a light bulb do?

It passes an electric current and its temperature rises to about3000 degrees C so that it is white-hot and gives off light.Unfortunately this type of bulb also produces a lot of heat, whichis just wasted power.

What is the color of the filament as you dim the bulb?

A filament radiates black-body radiation, with a range ofwavelengths and colours. The intensity peaks at a wavelength thatdepends on the temperature. As the bulb is dimmed the peakradiation occurs at longer wavelengths and the colour goes fromwhite to brown.

How many filaments exist in a light bulb?

Most incandescent bulbs have one filament. Some halogen bulbsworking on 240 v have two filaments in series, which must be tosimplify manufacture of bulbs being made for 120 v and 240 v in thesame factory.