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# How many btu's of heat produced by incandescent light bulb?

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###### 2009-06-15 16:05:49

Almost 90 % of electrical energy provided to an incandescent light bulb goes as heat and rest as light. A 100 Watt bulb puts out 100 Joules of heat per second. So - for one minute it would put out 6000 Joules (100 Watts X 60 seconds). 1 BTU (British Thermal Unit) of heat = 1055.056 Joules. So a 100 watt bulb, burning for one minute would put out 5.68 BTUs of heat. ( 6000 Joules / 1055.056 Joules) = 5.68 BTUs. Same bulb burning for one hour would generate 341 BTUs of heat.

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## Related Questions

a single incandescent light bulb is around 1.49\$

An LED has a longer life than an incandescent light bulb.

An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light which produces light with a wire filament heated to a high temperature by an electric current passing through it, until it glows.

Edison invented the light bulb and had a lab that produced many inventions.

The wire inside an incandescent light bulb is called a filament and it is made of tungsten.

Over time, the heat produced causes the filament to grow thinner. This causes the light bulb to grow dim.

how many lumens are in a 15 watt incandescent light bulb

The light bulb itself is not a conductor but the filament inside the bulb is.

Yes, because incandescent bulbs uses a resistive element which glows up to give out light. The force which opposes the flow of current through the filament wire causes more heat to be produced by the bulb.In the fluorescent bulb, noble gases are used and because these do not react to any force, less heat is produced. Though some amount of heat is produced by the end electrodes of the bulb.ANSWER: An incandescent bulb uses electricity to light the filament. Heat is the result. In a fluorescent light, argon and mercury are excited by an electrical charge and the result is light. The light is the same as a black light and if the bulb was not coated with phosphorus, white light would not be visible.

That depends on the type of lightbulb. There are at least three different technologies: 1) incandescent light bulb, 2) fluorescent light bulbs, 3) LEDs.

the incandescent light bulb was invented in November 9,1880. I am 11 years old and i know that

He named his invention the Incandescent Lamp, But it's commonly referred to today as the Incandescent Light Bulb.

The bulb and the filament are the two main components of an incandescent light bulb.

An incandescent bulb differs from a fluorescent based on how it produces light. "Incandescent" means producing light through heat, this is essentially how an incandescent bulb lights. As current travels to the tungsten filament, the filament heats and lights up as the tungsten filament begins to deteriorate and eventually fail. Fluorescent bulbs produce light when current excites gasses inside the glass envelope. As the gasses get excited they emit photons. Interestingly, the light produced by a fluorescent bulb does not fall along the visible spectrum until it passes through the white, phosphor coating on the inside of the bulb. And there you have it.

The incandescent electric light bulb was invented by Thomas A. Edison.

An incandescent light bulb with a tungsten coil filament.

A light bulb that uses a filament is also known as an incandescent light bulb.

How much electricity is consumed depends only on the power Wattage of the light bulb. No matter what types of bulbs they are, a 100 Watt bulb will always consume more electricity than a 60 Watt bulb. The type of bulb makes no difference to how much electricity is consumed but does make a big difference to the amount of light that is produced. In general: * a 100 Watt halogen bulb will produce more light than a 100 Watt normal incandescent light bulb; * a 20 Watt compact fluorescent light (CFL) bulb will produce about the same amount of light as a 100 Watt incandescent light bulb.

Mostly Visible Light and Infra-red, as an incandescent bulb by definition emits light through the generation of heat.

The typical lifespan of an incandescent light bulb is 2000 hours. This lifespan will be shortened by the increase of its off and on operations.

a single incandescent light bulb is around \$1.49

No, a higher wattage INCANDESCENT light bulb uses more current than a lower wattage INCANDESCENT light bulb. Some CF and LED bulbs are rated by the amount of light that an incandescent bulb would produce, but they are also rated by the wattage that they use.

If you increase the current in an ordinary incandescent light bulb, the light bulb will get brighter.

Aprox 35 lumens in an incandescent 7 watt light bulb

No. The incandescent bulb uses electrical energy and the light stick uses chemical energy.

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