PH-2013
Cost of electricity
Physics · Secondary 4 · Easy · Cost of electricity
A 3.0 kW electric heater is used for 20 minutes each day. How much electrical energy does it use in one day, in kWh?
- 1.0 kWh
- 0.33 kWh
- 60 kWh
- 9.0 kWh
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