Ua = 40 V
Rt = R1 + R2 = 15 + 5 = 20 Ohm
I = U/Rt = 40/20 = 2 A
Ur1 = Ir1 x R1 = 2 x 15 = 30 V
Ur2 = Ir2 x R2 = 2 x 5 = 10 V
Samen weer 40 V
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Hoe verloopt de spanning???