Odpowiedź:
R34=R3+R4
R34=4Ω+2Ω=6Ω
R234=R2*R34/(R2+R34)
R234=6Ω*3Ω/(6Ω+3Ω)
R234=2Ω
Rz=R1+R234
Rz=4Ω+2Ω=6Ω
I=U/R
I=12V/6Ω
I=2A
U1=I*R1
U1=2A*4Ω
U1=8V
U2=U-U1
U2=12V-8V
U2=4V
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Odpowiedź:
R34=R3+R4
R34=4Ω+2Ω=6Ω
R234=R2*R34/(R2+R34)
R234=6Ω*3Ω/(6Ω+3Ω)
R234=2Ω
Rz=R1+R234
Rz=4Ω+2Ω=6Ω
I=U/R
I=12V/6Ω
I=2A
U1=I*R1
U1=2A*4Ω
U1=8V
U2=U-U1
U2=12V-8V
U2=4V