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What type of light build glows when a filament inside it gets hot?
Wiki User
∙ 13y ago
Electric lamps having incandescent filaments.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoA filament lamp.
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The wire inside an electric bulb is known as the what?
This was called a filament and was found in older electric light bulbs.
What are incandescent bulbs?
An incandescent light bulb is your common household bulb. It is best identified by the presence of a filament (the thin piece of wire in the center of the glass bulb that glows when turned on.) The incandescent bulb's interior space is a vacuum (all the air is removed) so that the filament doesn't burn up. It produces a warm, slightly gold/yellow light. A "florescent" bulb, on the other hand, has no filament. It works by electrically exiting gas in a long tube creating a cool white light with almost the same color as the sun.
Why doesn't a bulb work when the filament inside is broken?
The filament in a light bulb (the part that glows bright) is usually made from a metal called tungsten which has such a high melting point that it can heat up as electricity is passed through it and give off light without melting at the high temperatures produced. However, at high temperatures, tungsten can also burn - so if a current is passed through the fillament under normal conditions, it will heat up, glow, but because it is so hot, it will react with the air around it and either vaporise or burn, becoming useless. To prevent this happening, the filament is enclosed in a glass bulb. In the bulb all the air is removed and another gas is put in instead. In cheap bulbs this is usually nitrogen, but more often the gas used is argon. Neither of these gases will allow burning, and so the filament can glow brightly when electricity is passed through it without the risk of it burning. However, if the glass bulb is broken - or even if it is simply cracked - air containing oxygen can get in and so when you switch on the bulb the hot filament burns away rapidly blowing the bulb.
Can you give me 2 fact about the incandescant light bulb?
-It's a very old technology quickly being replaced by newer more efficient technologies. -The light produced in the bulb is created by electricity heating up a filament inside the bulb creating light. This wouldn't be possible without the bulb however, since oxygen would quickly end this reaction of the filament through oxidation.
How does light from a flashlight travel?
A flash light generally makes light using a light bulb, which contains a filament. The filament is typically made from tungsten. It is very thin, but capable of withstanding extremely high temperatures. Electricity, from an internal power source, is passed through the filament. The filament has a resistance, so the current creates a very large heat in the wire. Because the wire is so thin, it heats up very quickly, and this excess energy is given out as light, and heat.
Which type of light bulb glows when a filament inside it gets hot?
An incandescent bulb.
What part of the bulb glows to produce light?
the filament
How does the light in a resistor glow?
The light glows because of the hot Filament.
What is a filament that glows white hot in electric light bulbs?
Tungsten :)
Why scientists use tungsten metal in manufacturing the filament of the light bulbs?
it glows and emits light.
How does electricity work in light bulbs?
The wiring inside the light bulb is very thin (the filament) and glows when heated. The current through the thin wire heats up the filament wire so that it will glow. See the related link 'How Light Bulbs Work'.
Why do light bulbs produce heat or light?
The electric current heats up a filament inside the bulb so hot that it glows. Most of the energy produces heat and the remainder light. The inert atmosphere inside the bulb extends its life. The filament is made of a high temperature material like Tungsten
Is a light bulb a soure of light?
Yes, a light bulb is a source of light. When current is going through the filament the resistance generates enough heat that the filament glows, producing light.
What is the filament that glows white hot in electric light bulbs?
Usually a Tungsten alloy.
What is something created when filament that becomes so hot it glows?
Light and heat is the something created
What is the hypothesis to how does a light bulb work?
When a current is passed through a thin wire filament it gets hot. Insulate the filament in a glass envelope with no air, and the filament glows brightly.
What do the support wires do on a light bulb?
As the name implies, support wires support the filament wire in the bulb, The filament, of course is the wire that glows white hot, giving out light
