3 Rezolvați circuitul. Aflati I₁, 12, 13, 14, It, U1, U2, U3, U4, Ut
R₁ 3,6 ohm; R2 = 4,0 ohm; R3 = 6,0 ohm; R4 = 4,0 ohm.
Voltmetrul indică 24 V, .
R2
Ri
R3
R4
