Hitunglah hamabatan pengganti untk tiap² rangkaian hambatan berikut.

A. Rp1=1/15+1/15+1/15=3/15=15/3=5 ohm
Rpengganti=R1+R2+Rp1=5+5+5=15 ohm

B. Rp1=1/12+1/6+1/4=1+2+3/12=6/12=12/6=2 ohm
Rs1=R1+R6+Rp1=4+4+2=10 ohm
Rpengganti=1R2+1Rs1=1/15+1/10=2+3/30=5/30=30/5=6

C.

a.1/Rp = 1/ R3 + 1/R4 + 1/R5
= 1/15 + 1/15 + 1/15
= 3/ 15
Rp = 15/3 = 5

Rtotal = R1 + R2 + Rp = 5 + 5 + 5
= 15 ohm

b.1/Rp = 1/R3 + 1/R4 + 1/R5
= 1/12 + 1/6 + 1/4
=1/12+2/12+3/12 = 6/12
Rp = 2 ohm

Rs = Rp + R1 +R6 = 2 + 4 + 4 = 10 ohm

1/Rtot = 1/Rs + 1/R2 = 1/10 + 1/15
= 3/30 + 2/30 = 5/30
Rtot = 6 ohm

c.Rs1 = R1+R2 = 5+5 = 10 ohm
Rs2 = R3+R4 = 10+10 = 20 ohm
1/Rp = 1/Rs1 + 1/Rs2
= 1/10 + 1/20
= 2/20 + 1/ 20
= 3/20
Rp = 20/3

Rs3 = Rp+R5 = 20/3 + 20 = 20/3 + 60/3
= 80/3

Rs4 = R6+R7 = 15 +15 = 30

1/Rtot = 1/Rs3 + 1/Rs4
= 3/80 + 1/30
= 9/240 + 8/240
= 17/240
Rtotal = 240/17 ohm

maaf klo salah :)