empat buah hambatan masing masing besar nya 10ohm,15ohm,20ohm,dan 30ohm tersusun pararel. hambatan pengganti nya adalah

R1 = 10 ohm
R2 = 15 Ohm
R3 = 20 ohm
R4 = 30 ohm

1/Rp = 1/R1 + 1/R2 + 1/R3 + 1/R4
1/Rp = 1/10 + 1/15 + 1/20 + 1/30
1/Rp =_______________/60
1/Rp = 6+4+3+2/60
1/Rp = 15/60
Rp = 60/15
Rp = 4 ohm