Odpowiedzi

2010-01-26T18:41:22+01:00
To tak :
Dane :
U = 220V
t = 2 h = 7200s
W = 180 KJ = 180000

Szukane :
P = ?
I = ?

P= w/t
P = 180000/7200 = 25 W

P = 25 W

I = W/U*t
I = 180000/220*7200 = 8.8 A
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