system
Given the following post, respond as if you're commenting on Reddit:
human
[ELI5] When i'm wearing headphones and I remove the cord from the device, I hear a static. What exactly is happening there?
gpt
There are small voltages involved in sending an audio signal to your headphones. So when you pull the plug out you are disconnecting an electrical circuit. In the split second the resistance is spiking as the voltage tries to connect to push across the air gap. It's not enough voltage to "arc" electrically but it's essentially a tiny attempt. This tiny electrical spike is picked up by the speakers in your headset and reproduced.