4.
Dane: Szukane:
R = 20 Ω U = ?
I = 400 mA = 0,4 A
R = U/I
U = R * I
U = 20 Ω * 0,4 A
U = 8 V
5.
R = 6 kΩ = 6000 Ω I = ?
U = 18 V
I = U/R
I = 18 V/ 6000 Ω
I = 0,003 A
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4.
Dane: Szukane:
R = 20 Ω U = ?
I = 400 mA = 0,4 A
R = U/I
U = R * I
U = 20 Ω * 0,4 A
U = 8 V
5.
Dane: Szukane:
R = 6 kΩ = 6000 Ω I = ?
U = 18 V
R = U/I
I = U/R
I = 18 V/ 6000 Ω
I = 0,003 A