https://m.liveexpert.ru/topic/view/2499031-kakoj-zaryad-projdet-cherez-poperechnoe-sechenie-zamknutogo-provodnika-s-soprotivleniem-om-pri-izmenenii-magnitnogo-potoka-to-mvb-do-mvb
https://m.liveexpert.ru/topic/view/2499031-kakoj-zaryad-projdet-cherez-poperechnoe-sechenie-zamknutogo-provodnika-s-soprotivleniem-om-pri-izmenenii-magnitnogo-potoka-to-mvb-do-mvb