Perhatikan gambar jawab dengan caranya

seri I = 6+2= 8 ohm
1/p1 = 1/8 + 1/8 = 2/8
p1 = 8/2 = 4 ohm

1/p2 = 1/3 + 1/3 + 1/3 = 3/3
p2 = 3/3 = 1

hambatan pengganti 4+1+9= 10 ohm