empat resistor masing masing R1=3ohm,R2=6ohm,R3=12,R4=12 dirangkai secara parallel.besar hambatan penggantinya adalah?

hambatan disusun pararel, maka :
1/Rp = 1/R1 + 1/R2 + 1/R3 + 1/R4
1/Rp = 1/3 + 1/6 + 1/12 + 1/12
1/Rp = (4+2+1+1)/12
1/Rp = 8/12
1/Rp = 2/3
Rp = 3/2 ohm
Rp = 1,5 ohm