Kuat arus yang mengalir sebesar...

1/Rp = 1/6 + 1/12 +1/4
= 2/12 + 1/12 + 3/12
= 5/12
Rp = 12/5 ohm
Rs = 12/5 + 3 = 2 2/5 + 3 = 5 2/5 ohm

I = E = 12 = 12
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R + r 5 2/5 + 1 6 2/5

= 12 = 12 X 5/32 = 60/32 = 1,875 A
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32/5