Odpowiedź :
[tex]Dane:\\ R=880\Omega\\ t=1h=3600s\\ U=220V\\ Oblicz:\\ q=?\\ Rozwiazanie:\\ I=\frac{U}{R}\\\\ I=\frac{q}{t}\\\\ \frac{q}{t}=\frac{U}{R}\\\\ q=\frac{Ut}{R}\\\\ q=\frac{220*3600}{880}\\\\ q=900C[/tex]
R = 880Ω
U = 220V
t = 1h = 3600s
Z prawa Ohma
R = U/I => I = U/R
I = 220V/880Ω = 0,25A
I = q/t => q = It
q = 0,25A x 3600s = 900C
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