Why is the laptop charger thing (transformer) making a noise?

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Music by Eric Matyas
https://www.soundimage.org
Track title: Luau

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Chapters
00:00 Why Is The Laptop Charger Thing (Transformer) Making A Noise?
00:22 Accepted Answer Score 16
00:37 Answer 2 Score 7
01:18 Answer 3 Score 6
01:39 Answer 4 Score 3
01:53 Thank you

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Full question
https://superuser.com/questions/104850/w...

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Tags
#laptop #powersupply

#avk47