Why the filament of the bulb are thermally isolated. How can it be made so?

Asked by aayushverma | 21st Sep, 2008, 10:15: AM

Expert Answer:

 this is because it  prevents the oxygen in air from reaching the hot filament, which otherwise would be destroyed rapidly by oxidation, the filament is made up very fine tungsten wire,

Answered by  | 22nd Sep, 2008, 11:09: PM

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