Odpowiedź:
U1=24V
U2=12V
P2=6W
I2=P2/U2
I2=6W/12V
I2=0,5A
Ur=U1-U2
Ur=24V-12V=12V
R=Ur/I
R=12V/0,5A
R=24Ω
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Odpowiedź:
U1=24V
U2=12V
P2=6W
I2=P2/U2
I2=6W/12V
I2=0,5A
Ur=U1-U2
Ur=24V-12V=12V
R=Ur/I
R=12V/0,5A
R=24Ω