Задача id9990
The field is created by an infinite vertical plane with a surface charge density of 4 nC/cm2. It contains a ball with a mass of 1 g and a charge of 1 nC suspended on a thread. Determine the angle formed by the thread with the plane.
Detailed solution. Format png
Оплата и выдача товара осуществляются через партнёрскую платформу.