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Cati jouli are un kW? Cu domstratie pls


Răspuns :

kilo (k) =10^3

1 kW=1*10^3=1000W
P=L/t
1 W=1 J/1 s
1 kW=1000 W=1000 J/1000 s
Deci 1000 J sau 1 kJ