I am using a laptop that I believe is having the ground loop issue. It zaps me if I touch the metallic frame when I stand on my ceramic floor.

I have a USB headset and the microphone picks up the buzzing static noise. Now, after wearing a pair of slippers (to prevent myself getting zapped again) and if I placed my hand on my laptop, the buzzing noise that was previously picked up by the microphone is reduced drastically. At times when I need to use the microphone, I tend to place my hand on my laptop to reduce the static noise. Is it safe for me to do so?


Although I'm not an electrician, I would highly discourage using the microphone. If there was a peak in voltage, there could be consequences more severe.

If possible, I would recommend trying to disable the microphone, or, if nessasary, open the laptop up and disconnect the microphone from the motherboard.

Better safe than sorry.

  • It is just a buzzing noise running at the background. I don't think it is necessary for me to go all the way removing my microphone from the motherboard. Ok, maybe saying the word "zapped" might sound severe, it was just a tingling sense if I touch it while standing on the ceramic floor, because ceramic picks up electric currents. I think my body acted as the "ground" now and that's why the static noise is reduced when I touch the metallic frame of my laptop. The background noise is greatly reduced and my voice got through even more clearly from the mic now. – Melissa M. Jun 1 '15 at 15:09
  • @MelissaM The thing is, if the voltage for some reason increases, you could be in for a nasty surprise... – user424484 Jun 1 '15 at 15:10
  • I had this problem and it was caused by a faulty wall socket – Suici Doga May 22 '18 at 3:46

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