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752 points calme_toi | 1 comments | 14 Apr 25 04:48 UTC | HN request time: 0.204s | source

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robocat ◴[17 Apr 25 20:16 UTC] No.43721720[source]▶

  When your finger gets close to the [touch] screen it causes a disturbance in the *magnetic* field that the electrodes sense.

Surely they mean electric field - for a capacitive touch screen.

1. marcosdumay ◴[17 Apr 25 22:43 UTC] No.43723018[source]▶

Well, it's a disturbance on the AC properties... so both.

But yeah, we usually talk about capacitance as an "electrical-only" phenomenon. It's quite weird to se it referred as magnetic.

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