Tiga resistor masing nilai hambatan 4ohm, 6 ohm, dan 12 ohm disusun secara parallel tentukan nilai hambatan penggantinya

diket :
R1 = 4 ohm
R2 = 6 ohm
R3 = 12 ohm
dit : hambatan pengganti
jwb :
1/Rp = 1/R1+1/R2+1/R3
1/Rp = 1/4+1/6+1/12
1/Rp = 3/12+2/12+1/12
1/Rp = 6 /12
Rp = 12 /6
Rp = 2 ohm