wyraź w kWh :
a) 600 J
b) 0,1 kJ
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wyraź w kWh :
a) 600 J
b) 0,1 kJ
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1kWh = 1000W·1h = 1000W·3600s = 3 600 000 J
a)
1kWh = 3 600 000 J
x = 600 J
x = 1 kWh · 600 J / 3 600 000 J = 0,00017 kWh
b) 0,1kJ = 100 J
1kWh = 3 600 000 J
x = 100 J
x = 1 kWh · 100 J / 3 600 000 J = 0,000028 kWh