Объяснение:
r24 = R2*R4 / (R2+R4) = 60*20 / (60+20) = 15 Ом
r0245 = Ro + R5+ r24 = 0.5+ 5 + 15 = 20.5 Ом
r01245 = r0245*R1 / (r0245+R1) = 20.5 *20 / (20.5 + 20) == 10.12 Ом
R = R3+r01245 = 30 + 10.12 = 40.12 Ом
Объяснение:
r24 = R2*R4 / (R2+R4) = 60*20 / (60+20) = 15 Ом
r0245 = Ro + R5+ r24 = 0.5+ 5 + 15 = 20.5 Ом
r01245 = r0245*R1 / (r0245+R1) = 20.5 *20 / (20.5 + 20) == 10.12 Ом
R = R3+r01245 = 30 + 10.12 = 40.12 Ом