Odpowiedź:
U = 30V
I = 4,5 A
-----------------------
R ?
R = U/I = 30V/4,5A = 20/3 Ω
R = 20/3 Ω
U = 20V
-----------------
I ?
I = U/R = 20V/(20/3 Ω) = 3 A
Odp. I = 3 A
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Odpowiedź:
U = 30V
I = 4,5 A
-----------------------
R ?
R = U/I = 30V/4,5A = 20/3 Ω
R = 20/3 Ω
U = 20V
-----------------
I ?
I = U/R = 20V/(20/3 Ω) = 3 A
Odp. I = 3 A