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MaRussiya [10]
3 years ago
7

How can you tell if a christmas tree light bulb is burned out just by looking at it?

Physics
2 answers:
zubka84 [21]3 years ago
6 0
You can tell by making sure that the lights are unplugged and tighten lights then plug it in if I didn't work it's burnt :) hope it works
PSYCHO15rus [73]3 years ago
6 0
It usually has a black stain it looks darker then the others... or if you look closely into it u can see the little metal for the electricity broken
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