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R₂= 19Ω
I₁ =2/3 A
I₂ = 3/4 A
dit : GGL dan hambatan dalam baterai
jawab
ε₁ =ε₂
I₁ (R₁ + r ) = I₂ ( R₂ + r)
3 ( 9 + r) = 3 ( 19 +r )
2 4
1 ( 9 +r) = 1 (19 +r )
2 4
9 + r = 1/2 (19 +r)
18 + 2r = 19 +r
r = 1
ε=I₁( R₁ + r)
= 3/2 ( 9+1)
= 15 v