PH-2006
Electrical power and energy
Physics · Secondary 4 · Medium · Electrical power and energy
A 60 W lamp is switched on for 3.0 hours each evening.
How much electrical energy does it use in one evening?
How much electrical energy does it use in one evening?
- 21 600 J
- 180 000 J
- 648 000 J
- 1 080 000 J
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