about working of bulb in 100 words
Answers
Answer:
Explanation:
An incandescent bulb works on the principle of incandescence, a general term meaning light produced by heat. In an incandescent type of bulb, an electric current is passed through a thin metal filament, heating the filament until it glows and produces light.Essentially, the lightbulb is a very thin filament of hard-to-melt metal – tungsten, usually – encased in a glass bulb filled with inert gases so that the filament doesn't oxidise and disintegrate. The electricity causes the wire to glow and a portion of that energy is turned into light.
Answer:
The lightbulb has been shedding light in our homes and workplaces since the 1870s. and it’s been doing a sterling job considering the light it creates is a by-product of the chemical processes going on.
Essentially, the lightbulb is a very thin filament of hard-to-melt metal – tungsten, usually – encased in a glass bulb filled with inert gases so that the filament doesn’t oxidise and disintegrate. The electricity causes the wire to glow and a portion of that energy is turned into light.
But, it turns out, the lightbulb might have been more accurately called the ‘heatbulb’ – most of its energy gets turned into heat. Which is why the bulbs are being slowly phased out in favour of alternatives like LED lights.