Source: https://s0a05578cbddcd72c.jimcontent.com/download/version/1514294880/module/10470270152/name/Cours%20Lyc%C3%A9e%20pilote%20-%20Physique%20-%20Forc%C3%A9e%20%C3%A9lectrique%20-%20Bac%20Toutes%20Sections%20%282017-2018%29%20Mr%20Afdal%20Ali.pdf