Wyjaśnienie:
Dane:
U:230V
I:2A
t:2h
P=230×2
P=460W=0,46kW
E=P×t
E=0,46kW×2h
E=0,92kW
0,92kW×0,5zł=0,46zł
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Wyjaśnienie:
Dane:
U:230V
I:2A
t:2h
P=230×2
P=460W=0,46kW
E=P×t
E=0,46kW×2h
E=0,92kW
0,92kW×0,5zł=0,46zł