kuat arus(I) yang mengalir sebesar...A

V= I/R
R paralel
= 1/Rp = 1/6 + 1/12 + 1/4 = 6/12
=Rp/1 = 12/6= 2
R total = 2 + 3 + 1 = 6
V = 12
I= 12/6= 2,0 Ampere (B)