Прямолинейный проводник длиной 10 см располагают горизонтально в вертикальном однородном магнитном поле с индукцией 0,4 Тл. Какой силы

I always go to the swimming pool with my friends. We get there by bus, as a rule. Sometimes I take my brother with us. We usually spend two hours there. Everything is always alright, because everybody is easy to get along with.