1.

I total = 10,7/17,78 = 0,60 A
R4 R5 : R45 = 10.10/10+10 = 5 Ohm
R2 = R45+R6+R7= R4567 = 5+10+10 = 25 Ohm
R3 = R2 – 7 : R3 (2 – 7)= 10.35/35+10 = 7.78 Ohm
R1 = 10 Rtotal = 17.78 Ohm
Arus Total
10,7V dan 17,78 Ohm
I total = 10,7/17.78 = 0,60 A
2.

R45 = 5 Ohm
R4567 = 5 +10+10 = 25 Ohm
R3 = R4567 = R2-7 = 10+20 = 35 Ohm
R2 = RB = R28 = 10 + 10 = 20 Ohm
(R3-7) (R2-8) = 35.20/35+20 = 700/55 = 12,73 Ohm + R1 = 22.73
di bulatkan 22,78
=10/22,78= 0,44 A
3.

R3 = 3,8
R56 Paralel = 5ohm = R78 = 10 = R5678 = 10 + 5 = 15
R2 Seri =R2-8= 19 + 15 = 25
R34 = 13,8
= 25.13,8/25+13,8 = 8,79
Rtotal = 28.79
V = 14
Rtot = 16,1 = 14/16,1 = 0.87 A
