jika rangkaian paralel R2=R3=10 ohm dan rangkaian seri R1=R4=12 ohm dan V=20 volt. berapakah kuat arus yg mengalir

1/Rp = 1/R2 + 1/R3
1/Rp = 1/10 + 1/10
1/Rp = 2/10
Rp = 10/2 = 5 ohm

Rs = R1 + R4
Rs = 12 ohm + 12 ohm = 24 ohm

Rtotal = 5 + 24 = 29 ohm

I = V/Rtotal
I = 20/29
I = 0,69 A