Electricitatea statică- opțional

 Electricitatea statică- pentru opționalul DEXI

https://youtu.be/yhEiNGsqN-c?si=kABHHy2XPY1ebYVo

https://www.youtube.com/watch?v=_DwNuxNQ_5M

https://www.youtube.com/watch?v=qrSrn0zfXuw

https://www.youtube.com/watch?v=IjTRzf6nYCY

explicații:

https://www.oradefizica.ro/ora-fizica/electricitate-magnetism/magie-cu-sare-si-piper.php

https://www.youtube.com/watch?v=3aB6TyhaSsQ