i have a drift velocity simulation here
https://iwant2study.org/ospsg/index.php/interactive-resources/physics/05-electricity-and-magnetism/04-current/118-metalic-conductor-model
[img]https://2.bp.blogspot.com/-crbaWYYUuUE/VW0gXZ-f4RI/AAAAAAAAuEc/g-xp1grQjwU/s640/Step%2B2.gif[/img]