Answers

2014-04-11T15:43:22+05:30
Air is completely removed from an electric bulb to prevent oxidiation of tungsten filament.
This is a MCQ in my science book.
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Thanks Kopal, In my book answer is printed wrong.
welcome its my pleasure.
2014-04-11T15:51:04+05:30
Its malfunctioning :
oxidation of its filament.
loss of light due to absorption.
short circuit prevention

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