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Rz=R1+R2=2Ω+4Ω=6Ω
płynący prąd
I=U/Rz=12V/6Ω=2A
spadki napięć na poszczególnych opornikach
U1=I*R1=2A*2Ω=4V
U2=I*R2=2A*4Ω=8V
R1 = 2 Ω
R2 = 4 Ω
E = 12 V
-------------------------
R = R1 + R2 = 2 Ω + 4 Ω = 6 Ω
I = E/R = 12 V / 6 Ω = 2 A
U1 = I *R1 = 2 A *2 Ω = 4 V
U2 = I * R2 = 2 A* 4 Ω = 8 V
Odp. Woltomierz V1 wskaże U1 = 4 V, a woltomierz V2 wskaże
U2 = 8 V.