PH-1950
Cost of electricity
Physics · Secondary 4 · Easy · Cost of electricity
A 60 W lamp is left switched on for 5.0 hours. How much electrical energy does it use? Give your answer in kilowatt-hours (kWh).
- 0.30 kWh
- 0.083 kWh
- 3.0 kWh
- 300 kWh
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