so, I was wondering what exactly is the annoying buzzing of light bulbs, power sockets and generally any things which work with electricity I hear all the time. as far as I know electricity can have extremely quiet sound or no sound at all, so what exactly it is? is it circuits and electrical parts working or is it something else?
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A lot of electrical devices use AC (Alternating Current), which is what comes out of the electric sockets in your house. That current ‘alternates’ 60 times per second. That change sometimes translates into a very small physical motion of electric components, which in turn results in the 60 Hz sound you hear.
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