PH-2048
Cost of electricity
Physics · Secondary 4 · Medium · Cost of electricity
A 60 W lamp is switched on for 3.0 hours each day. One unit of electricity (1 kWh) costs \$0.25. What is the cost of running the lamp for 10 days?
- \$0.45
- \$0.75
- \$4.50
- \$0.18
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