Объяснение:
r = R2*R3 / (R2*R3) = 40*10 / (40+10) = 8 Ом
U = (R1+r)*I
R1 = (U/I) - r = (50/2.5) - 8 = 12 Ом
U1 =U2 = I*r = 2.5*8 = 20 B
I2 = U2/R2 = 20 / 40 = 0.5 A
I3 = U3 / R3 = 20 / 10 = 2 A
Объяснение:
r = R2*R3 / (R2*R3) = 40*10 / (40+10) = 8 Ом
U = (R1+r)*I
R1 = (U/I) - r = (50/2.5) - 8 = 12 Ом
U1 =U2 = I*r = 2.5*8 = 20 B
I2 = U2/R2 = 20 / 40 = 0.5 A
I3 = U3 / R3 = 20 / 10 = 2 A