How to 変換 電気 power in watts (W) to energy in kilojoules (kJ).
You can 計算 kilojoules from watts and seconds, but you can't 変換 watts to kilojoules since watt and kilojoule units represent different quantities.
The energy E in kilojoules (kJ) is equal to the power P in watts (W), times the 時間 period t in seconds (s):
E(kJ) = P(W) × t(s) / 1000
So
kilojoules = watts × seconds / 1000
or
kJ = W × s / 1000
What is the energy consumption of an electrical circuit that has power consumption of 300 watts for 時間 duration of 3 seconds
E(kJ) = 300W × 3s / 1000 = 0.9kJ
