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Dane:
U= 1000 V
R= 5 kΩ = 5000 Ω
Szukane:
I= ?
Wzór:
R=U/I /*I
U=R*I /:R
I=U/R
I= 1000 V/ 5000 Ω
I= 1/5 A
Odp. Natężenie wynosi 1/5 A.