PH-651
Cost of electricity
Physics · Secondary 3 · Easy · Cost of electricity
A 60 W lamp is switched on for 3.0 h. The mains voltage is 240 V.
How much electrical energy does the lamp use in kWh?
How much electrical energy does the lamp use in kWh?
- 0.018 kWh
- 0.18 kWh
- 1.8 kWh
- 18 kWh
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