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A light bulb radiates visible light when an electric current passes through its filament, causing it to glow and produce light.

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1y ago

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What is the speed it takes your light bulb to transmit at the speed of light?

By definition, light travels at the speed of light. About 300,000 kps


What cause glow of a filament of bulb when current flows through it?

The current causes heat. The heat is high enough to radiate energy in the form of visible light.


Is all of the electricity used to light a light bulb useful light?

No. Part of the energy is wasted, mainly as heat.


How electrical energy converted in to light energy?

Electricity can be converted to light using light bulb. An incandescence light bulb produce light by passing electricity through filament (resistance) and create heat so hot that it radiate out light. It also can produce light using Electro-luminescence effect as in LED lamb or using ionized gas discharged as in Fluorescent lamb.


What is the ability to radiate light?

Luminescence.


Why do you think a light bulb feels warm?

A light bulb is designed to take electrical energy and radiate it as electromagnetic energy.It would be nice of all of that energy came out in the form of light, but that has never been accomplished yet. An incandescent light bulb ... the original kind ... radiates much more heatenergy than light energy. In other words, an incandescent light bulb works much more efficientlyas a heater than it does as a source of light.


Bodies that radiate light are called?

Luminous


What is a sentence using the word radiate?

Here points radiate out from the central idea or concept.


What is the medium for light?

Light, whatever the wavelength, does not need a medium in order to radiate.


What is best known for Thomas Edison?

Thomas Edison is best-known for the light bulb.


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