Light bulb is the source of electric light. It is use in residential and commercial premises to give light and provide vision in dark areas.
heat, and some light
A standard tungsten-element light bulb, there is no gas under the glass, it is a vacuum.
The number on the top of a light bulb indicates the wattage of the bulb, which is a measure of the amount of power the bulb consumes. This can give you an idea of how bright the light will be and how much energy it will use.
No. A electric fan can only give wind.
Incandescent bulbs give about 10 lumens of light per watt of electric power Halogens give about 13 lumens per watt CFLs give about 50 lumens per watt So it depends on the type of bulb.
Thsi depends on the light bulb specification. For example if you buy a standard 60W light bulb from your supmarket then this will consume 0.06kilowatts. Its simple just divide the wattage stated on the light bulb by 1000 to give you the kilowatts
A light bulb gives out light energy and heat energy as forms of energy. The light energy is emitted as visible light, while the heat energy is generated as a byproduct of the bulb's operation.
Both bulbs output the same amount of energy. The difference is in how much of that energy is output as heat vs the energy output as light. In a standard incandescent light bulb about 10% of the energy is output as light while the other 90% is output as heat. This makes the bulb only 10% efficient. For a florescent bulb the output of light is about 50% and the other 50% is output in heat. This means that a fluorescent bulb outputs five times as much light for the same wattage as a standard incandescent bulb, hence you can get the equivalent of 100 watts of light output for only 20 watts of electricity.
hah. hahaha.
Go to five island and receive the parcel from the old man. Then go to Bill(after finding the ruby and sapphire) and give him the parcel. Bill will give you the light bulb.
When a light bulb gives its last glimmer, it means that the filament inside the bulb has burned out. This results in the light bulb no longer being able to produce light. When this happens, the bulb needs to be replaced with a new one.