PH-657
Cost of electricity
Physics · Secondary 3 · Easy · Cost of electricity
A 60 W lamp is switched on for 3.0 h. How much electrical energy does it use? (Give your answer in kWh.)
- 0.020 kWh
- 0.18 kWh
- 1.8 kWh
- 18 kWh
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.