PH-1891
Cost of electricity
Physics · Secondary 4 · Medium · Cost of electricity
A 1.5 kW kettle is used for 30 minutes each day. Electrical energy costs \$0.28 per kWh. What is the cost of using the kettle for one day?
- \$0.11
- \$0.21
- \$0.42
- \.05
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