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R1=3 ohm
R2=4 ohm
R1 dan R2= seri
V=35 volt
Ditanyakan Tegangan di R2
Jawab
Dicari Rt lebih dahulu
Rt=R1+R2=3+4=7 ohm
I=V/Rt=35/7= 5A
Vdi R1 = I x R1
V di R2=I x R2=5 x 4 = 20 volt
Jadi tegangan di R2= 20 volt (jawaban C)