Question

Помогите с заданием по физике!!!

Answer 1

Ответ:

Объяснение:

№1

$I_1 = dfrac{V_1}{R_1} = dfrac{20}{10} = 2~A\\I_{sum} = I_1\R_{sum} = dfrac{V_{12}}{I_{sum}} = dfrac{44}{2} = 22~Om\R_{sum} = R_1 + R_2 to R_2 = R_{sum} - R_1 = 22 - 10 = 12~Om$

№2

$R_{sum} = R_1 + dfrac{R_2*R_3}{R_2 + R_3} + R_5 = 1 + dfrac{3*6}{3 + 6} + 6 = 9~Om\R_{AB} = dfrac{R_2*R_3}{R_2 + R_3} = dfrac{3*6}{3 + 6} = 2~Om\I_{AB} = 3~A to U_{AB} = I_{AB} * R_{AB} = 3 * 2 = 6~V\I_{CD} = 3~A to U_{CD} = I_{CD} * R_{sum} = 3 * 9 = 27~V\I_1 = 3~A \U_2 = U_{AB} = 6~V to I_2 = dfrac{U_2}{R_2} = dfrac{6}{3} = 2~A$