CBSE Class 10 Answered
Why the filament of the bulb are thermally isolated. How can it be made so?
Asked by aayushverma | 21 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 | 22 Sep, 2008, 11:09: PM
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