"voltage pen" on a table surface

"voltage pen" on a table surface and touch a laptop.
non-conductive table surface.

voltage pen tester on a table surface and touch a laptop.

non-conductive table surface.

A simple example of a voltage pen 🖊 activated on a table surface. Cheap voltage pens may be too sensitive.

Gauss’s law for magnetism states that the magnetic flux across any closed surface is zero

As in this example.

more examples of voltage pens on youtube:
https://www.youtube.com/results?search_query=voltage+pen


amazon.ca $25.00 - voltage pen 🖊 testers 

https://amzn.to/3pzXaBL

Created by AV
20Feb2021