Incandescent light bulb - Revision history

Jmdonev: /* Phet Simulation */

2025-02-09T22:40:44Z

Phet Simulation

← Older revision		Revision as of 22:40, 9 February 2025
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	The [http://phet.colorado.edu/ University of Colorado] has graciously allowed us to use the following Phet simulation. Explore this simulation to see changing temperature changes the amount of radiation given by a light bulb filament. All of the [[radiant energy]] to the right of the rainbow in the simulation is [[energy]] coming off as [[heat]] ([[infrared radiation]]):		The [http://phet.colorado.edu/ University of Colorado] has graciously allowed us to use the following Phet simulation. Explore this simulation to see changing temperature changes the amount of radiation given by a light bulb filament. All of the [[radiant energy]] to the right of the rainbow in the simulation is [[energy]] coming off as [[heat]] ([[infrared radiation]]):

	<html><iframe src="~~http~~://phet.colorado.edu/sims/blackbody-spectrum/blackbody-~~spectrum_en~~.html" width="800" height="600"></iframe></html>		<html><iframe src="https://phet.colorado.edu/sims/html/blackbody-spectrum/latest/blackbody-spectrum_all.html" width="800" height="600"></iframe></html>

	== For Further Reading ==		== For Further Reading ==

Jmdonev: 1 revision imported

2018-05-18T22:53:15Z

1 revision imported

← Older revision	Revision as of 22:53, 18 May 2018
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Jmdonev at 03:12, 18 May 2018

2018-05-18T03:12:15Z

← Older revision		Revision as of 03:12, 18 May 2018
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	[[Category:Done ~~2017~~-07-01]]		[[Category:Done 2018-05-18]]
	[[File:Incandescent Light Bulb.png\|~~thumbnail~~\|A typical incandescent light bulb. The filament is the thin wire stretched between the vertical contact wires and held up by two other support wires.]]		[[File:Incandescent Light Bulb.png\|thumb\|250px\|right\|A typical incandescent light bulb. The filament is the thin wire stretched between the vertical contact wires and held up by two other support wires.]]

	<onlyinclude>'''Incandescent light bulbs''' are devices that convert [[electricity]] into [[light]] by heating a filament using ~~electrical~~ [[current]] until it emits [[electromagnetic radiation]]. As current passes through the filament, its high [[resistance]] causes its [[temperature]] to rise until it glows.</onlyinclude> This effect is known as [[incandescence]], and it is the guiding principle behind the traditional [[light bulb]] (see figure 1). The light bulb filament about 3000 [[Kelvin\|K]], so it gives off [[blackbody radiation]], which (as shown below) means a lot of energy is going into [[heat]].		<onlyinclude>'''Incandescent light bulbs''' are devices that convert [[electricity]] into [[light]] by heating a filament, using [[electric current]], until it emits [[electromagnetic radiation]]. As current passes through the filament, its high [[resistance]] causes its [[temperature]] to rise until it glows.</onlyinclude> This effect is known as [[incandescence]], and it is the guiding principle behind the traditional [[light bulb]] (see figure 1). The light bulb filament is about 3000 [[Kelvin\|K]], so it gives off [[blackbody radiation]], which (as shown below) means a lot of energy is going into [[heat]].

	Incandescent light bulbs is still a remarkably widespread method of [[lighting]] but other types of light bulbs (like [[LED]] and [[CFL light bulb\|CFL]]) are growing more popular. This shift is due to the extreme [[efficiency\|inefficiency]] of incandescent bulbs as they only convert about 10% of the [[electrical energy]] they receive into visible light, with the rest being dissipated as heat.<ref>Edison Tech Center. ''Incandescent Lamps'' [Online}. Available: http://www.edisontechcenter.org/incandescent.html</ref> In Canada, legislation has been place since 2014 to phase out incandescent bulbs with alternatives like [[halogen light]]s, [[CFL light bulb]]s, and [[LED light bulb]]s.<ref>Natural Resources Canada. ''Canada’s standard for efficient light bulbs'' [Online]. Available: https://www.nrcan.gc.ca/energy/products/whats-new/13583</ref>		Incandescent light bulbs is still a remarkably widespread method of [[lighting]] but other types of light bulbs (like [[LED]] and [[CFL light bulb\|CFL]]) are growing more popular. This shift is due to the extreme [[efficiency\|inefficiency]] of incandescent bulbs as they only convert about 10% of the [[electrical energy]] they receive into visible light, with the rest being dissipated as heat.<ref>Edison Tech Center. ''Incandescent Lamps'' [Online}. Available: http://www.edisontechcenter.org/incandescent.html</ref> In Canada, legislation has been place since 2014 to phase out incandescent bulbs with alternatives like [[halogen light]]s, [[CFL light bulb]]s, and [[LED light bulb]]s.<ref>Natural Resources Canada. ''Canada’s standard for efficient light bulbs'' [Online]. Available: https://www.nrcan.gc.ca/energy/products/whats-new/13583</ref>
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	<html><iframe src="http://phet.colorado.edu/sims/blackbody-spectrum/blackbody-spectrum_en.html" width="800" height="600"></iframe></html>		<html><iframe src="http://phet.colorado.edu/sims/blackbody-spectrum/blackbody-spectrum_en.html" width="800" height="600"></iframe></html>

			== For Further Reading ==
			For further information please see the related pages below:
			*[[Blackbody radiation]]
			*[[Lighting]]
			*[[Daylighting]]
			*[[Access to non-solid fuel]]
			* Or explore a [[Special:Random\| random page!]]

	==References==		==References==
	{{reflist}}		{{reflist}}
	[[Category:Uploaded]]		[[Category:Uploaded]]

Jmdonev: 1 revision imported

2017-08-29T01:47:18Z

1 revision imported

← Older revision	Revision as of 01:47, 29 August 2017
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Jmdonev at 17:10, 15 August 2017

2017-08-15T17:10:24Z

← Older revision		Revision as of 17:10, 15 August 2017
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	[[Category:Done ~~2015~~-07-24]]		[[Category:Done 2017-07-01]]
	[[File:Incandescent Light Bulb.png\|thumbnail\|A typical incandescent light bulb. The filament is the thin wire stretched between the vertical contact wires and held up by two other support wires.]]		[[File:Incandescent Light Bulb.png\|thumbnail\|A typical incandescent light bulb. The filament is the thin wire stretched between the vertical contact wires and held up by two other support wires.]]

	<onlyinclude>'''Incandescent light bulbs''' are devices that convert [[electricity]] into light by heating a filament using electrical [[current]] until it emits [[electromagnetic radiation]]. As current passes through the filament, its high [[resistance]] causes its temperature to rise until it glows.</onlyinclude> This effect is known as incandescence, and it is the guiding principle behind the traditional light bulb (see figure 1). The light bulb filament about 3000 [[Kelvin\|K]], so it gives off [[blackbody radiation]], which (as shown below) means a lot of energy is going into [[heat]].		<onlyinclude>'''Incandescent light bulbs''' are devices that convert [[electricity]] into [[light]] by heating a filament using electrical [[current]] until it emits [[electromagnetic radiation]]. As current passes through the filament, its high [[resistance]] causes its [[temperature]] to rise until it glows.</onlyinclude> This effect is known as [[incandescence]], and it is the guiding principle behind the traditional [[light bulb]] (see figure 1). The light bulb filament about 3000 [[Kelvin\|K]], so it gives off [[blackbody radiation]], which (as shown below) means a lot of energy is going into [[heat]].

	~~Although this method of lighting~~ is still remarkably widespread~~, numerous alternatives~~ are growing more popular due to the extreme inefficiency of incandescent bulbs as they only convert about 10% of the electrical energy they receive into visible light, with the rest being dissipated as heat.<ref>Edison Tech Center. ''Incandescent Lamps'' [Online}. Available: http://www.edisontechcenter.org/incandescent.html</ref> In Canada, legislation has been place since 2014 to phase out incandescent bulbs with alternatives like [[halogen light]]s, [[CFL light bulb]]s, and [[LED light bulb]]s.<ref>Natural Resources Canada. ''Canada’s standard for efficient light bulbs'' [Online]. Available: https://www.nrcan.gc.ca/energy/products/whats-new/13583</ref>		Incandescent light bulbs is still a remarkably widespread method of [[lighting]] but other types of light bulbs (like [[LED]] and [[CFL light bulb\|CFL]]) are growing more popular. This shift is due to the extreme [[efficiency\|inefficiency]] of incandescent bulbs as they only convert about 10% of the [[electrical energy]] they receive into visible light, with the rest being dissipated as heat.<ref>Edison Tech Center. ''Incandescent Lamps'' [Online}. Available: http://www.edisontechcenter.org/incandescent.html</ref> In Canada, legislation has been place since 2014 to phase out incandescent bulbs with alternatives like [[halogen light]]s, [[CFL light bulb]]s, and [[LED light bulb]]s.<ref>Natural Resources Canada. ''Canada’s standard for efficient light bulbs'' [Online]. Available: https://www.nrcan.gc.ca/energy/products/whats-new/13583</ref>

	==Phet Simulation==		==Phet Simulation==
	The [http://phet.colorado.edu/ University of Colorado] has graciously allowed us to use the following Phet simulation. Explore this simulation to see changing temperature changes the amount of radiation given by a light bulb filament. ~~Note that much~~ of the energy is coming off as heat:		The [http://phet.colorado.edu/ University of Colorado] has graciously allowed us to use the following Phet simulation. Explore this simulation to see changing temperature changes the amount of radiation given by a light bulb filament. All of the [[radiant energy]] to the right of the rainbow in the simulation is [[energy]] coming off as [[heat]] ([[infrared radiation]]):

	<html><iframe src="http://phet.colorado.edu/sims/blackbody-spectrum/blackbody-spectrum_en.html" width="800" height="600"></iframe></html>		<html><iframe src="http://phet.colorado.edu/sims/blackbody-spectrum/blackbody-spectrum_en.html" width="800" height="600"></iframe></html>

J.williams: 1 revision imported

2015-08-26T21:31:12Z

1 revision imported

← Older revision	Revision as of 21:31, 26 August 2015
(No difference)

J.williams at 16:54, 12 August 2015

2015-08-12T16:54:47Z

New page

[[Category:Done 2015-07-24]]
[[File:Incandescent Light Bulb.png|thumbnail|A typical incandescent light bulb. The filament is the thin wire stretched between the vertical contact wires and held up by two other support wires.]]

<onlyinclude>'''Incandescent light bulbs''' are devices that convert [[electricity]] into light by heating a filament using electrical [[current]] until it emits [[electromagnetic radiation]]. As current passes through the filament, its high [[resistance]] causes its temperature to rise until it glows.</onlyinclude> This effect is known as incandescence, and it is the guiding principle behind the traditional light bulb (see figure 1). The light bulb filament about 3000 [[Kelvin|K]], so it gives off [[blackbody radiation]], which (as shown below) means a lot of energy is going into [[heat]].

Although this method of lighting is still remarkably widespread, numerous alternatives are growing more popular due to the extreme inefficiency of incandescent bulbs as they only convert about 10% of the electrical energy they receive into visible light, with the rest being dissipated as heat.<ref>Edison Tech Center. ''Incandescent Lamps'' [Online}. Available: http://www.edisontechcenter.org/incandescent.html</ref> In Canada, legislation has been place since 2014 to phase out incandescent bulbs with alternatives like [[halogen light]]s, [[CFL light bulb]]s, and [[LED light bulb]]s.<ref>Natural Resources Canada. ''Canada’s standard for efficient light bulbs'' [Online]. Available: https://www.nrcan.gc.ca/energy/products/whats-new/13583</ref>

==Phet Simulation==
The [http://phet.colorado.edu/ University of Colorado] has graciously allowed us to use the following Phet simulation. Explore this simulation to see changing temperature changes the amount of radiation given by a light bulb filament. Note that much of the energy is coming off as heat:

<html><iframe src="http://phet.colorado.edu/sims/blackbody-spectrum/blackbody-spectrum_en.html" width="800" height="600"></iframe></html>

==References==
{{reflist}}
[[Category:Uploaded]]