Mehdi from electroboom did video on this, the range is few meters. If I remember correctly the spark breaks oxide layers and makes contact.
Mehdi is such a wonderful educator! I wish I’d had him as a professor for whatever topic he’d be interested in teaching.
https://www.youtube.com/watch?v=VMkdnj698-0
Mehdi is such a wonderful educator! I wish I’d had him as a professor for whatever topic he’d be interested in teaching.