20 Ω 80 Ω 100 Ω 220 Ω
Jawaban:
R pengganti paralel :
1/R total = 1/R1 + 1/R2 + 1/R3
R1 = 60 ohm
R2 = 120 ohm
R3 = 40 ohm
1/R = 1/60 + 1/120 + 1/40
1/R = 2/120+ 1/120 + 3/120
1/R = 6/120
R = 120/6
jadi, besar hambatan penggantinya adalah A.20 ohm
