[tex]Dane:\\U_1 = 6 \ V\\I_1 = 0,2 \ A\\U_2 = 9 \ V\\Szukane:\\I_2 = ?\\\\Rozwiazanie\\\\Z \ prawa \ Ohma:\\\\R = \frac{U}{I} = const.\\\\R = \frac{U_1}{I_1}\\oraz\\R = \frac{U_2}{I_2}\\\\\frac{U_1}{I_1} = \frac{U_2}{I_2}\\\\U_1\cdot I_2 = U_2\cdot I_1 \ \ /:U_1\\\\I_2 = \frac{U_2}{U_1}\cdot I_1\\\\I_2 = \frac{9 \ V}{6 \ V}\cdot 0,2 \ A\\\\\boxed{I_2 = 0,3 \ A}[/tex]
