If you used 400 W of power for 30 h, you have used<br>
<br>
A. 1.3 kWh<br>
B. 13.3 kWh<br>
C. 1.2 kWh<br>
D. 12 kWh
Submitted by: MuhammadOption D
Submitted by: Muhammad
Submitted by: Muhammad
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