Odpowiedzi

2009-11-24T21:30:30+01:00
1kWh= 3600000 J
P=U*I=230V*0,5A=115W
W=P*t
t=6660 min=399600 s
W=115W*399600=45954000
W/1kWh=45954000/3600000=12,765Kwh
12,765kWh*0,3zł=3,83zł
2009-11-24T21:39:10+01:00
1kWh= 3600000 J
P=U*I=230V*0,5A=115W
W=P*t
t=6660 min=399600 s
W=115W*399600=45954000
W/1kWh=45954000/3600000=12,765Kwh
12,765kWh*0,3zł=3,83zł

moc P to 12,76 kWh
koszt to 3, 83 zł