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Answered 2009-11-07 20:11:53

A light bulb does not generate energy, it converts energy from one form to another. Specifically it converts electrical energy to heat and light (electromagnetic energy) and some magnetic energy.

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A light bulb wastes about 85 percent of its energy how efficient is it?

It uses the remaining 15% to generate light and thus it is 15% effective.

What is the percent efficiency of a 60W light bulb that produces 6W of light energy?

If you're using it to generate light, 10 percent efficient. If you're using it to generate heat, 90 percent efficient.

What kind of energy is converted in a light bulb?

Mechanic energy is converted in to light bulb , in bulb the electric energy converted into heat and light

What energy transformations occur in a light bulb?

In a light bulb, electrical energy is transformed into light energy and heat energy.

What is the energy that happen in a light bulb?

Energy does not happen. Electrical energy is routed through a light bulb, and some of it is converted to heat energy and light energy inside the bulb.

What is the Energy transfer in a working light bulb?

A light bulb turns electrical energy into light and heat energy.

What is the source of energy in a light bulb?

Electricity is the source of energy in a light bulb.

When energy runs through a light bulb what kind of energy does the light bulb produce?

A light bulb uses electrical energy, and produces light, as well as heat.

What is most of the energy produced by a light bulb?

Most of the energy in a light bulb is heat energy.

How do you light a light bulb with your bike?

It will be like a generator and generate it to light up the light bulb. I hope this helped you and good luck with your answer!

What energy occurs in the light bulb?

light and heat energy occur in a light bulb when it is turned on.

Is a light bulb an example og electromagnetic energy?

A light bulb is not an example of electromagnetic energy, but the light which the bulb gives off is an example of electromagnetic energy.

When the light bulb is lit electrical energy is changed into light energy and?

When lighting a light bulb, it is changed into light and heat/thermal energy.

What percentage of energy does an energy saving bulb save compared to an ordinary bulb?

It varies, depending on the specific model, but an energy-saving (fluorescent) light bulb should save at least half the energy, for the same luminosity, compared to the old-fashioned incandescent light bulbs. The incandescent light bulbs ought to be outlawed, except for specific purposes where the heat they generate is actually needed.

Is a light bulb a source of light?

Yes it is. Electrical energy going into the bulb is converted into light and heat energy.

In an light bulb what energy produces thermal energy which then produces radiant energy?

the energy that produces heat in a light bulb is electromagnetic.

How is light bulb a form of energy?

A light bulb IS not a form of energy, it CONVERTS energy. A lightbulb converts electricity into heat and visible light.

What forms of energy leave a light bulb when it's off?

Light energy leaves when light bulb is off. No electrical energy is supplied.

Where does the energy for a light bulb come from?

it come from the energy source in the middle of the light bulb he clearly asked what type of energy is it?!

What energy is the type of energy light has?

Light has heat and light energy. Example is bulb.

What type of energy is when you plug in a light bulb?

To plug it in, you use your muscle energy. When current flows through the bulb,electrical energy converted to the heat and light energy in the bulb.

What useful energy comes out of a light bulb?

light energy

What type energy does a light bulb produce?

light energy

What device converts electrical energy to light energy?

An incandescent light bulb does that, as does a radiant heating element. A light-emitting diode (LED) also generates light from electricity from the excitation of a semiconductor junction. A fluorescent bulb can be used to create light from electricity by stimulating the chemical to fluoresce. Gaseous bulbs can generate light from electricity, such as a neon/argon/halogen bulb with a high-voltage applied to the gas inside.

What are the differences between a energy efficient light bulb and a regular light bulb?

An energy efficient light bulb will use less energy than a normla light bulb; this means it produces less heat (heat is usually an unwanted byproduct of producing light).