PH-2000
Cost of electricity
Physics · Secondary 4 · Medium · Cost of electricity
A 2.0 kW water heater is switched on for 45 minutes each day. The cost of electricity is \$0.25 per kWh. What is the cost of using the heater for 20 days?
- \$3.75
- \$6.00
- \$7.50
- \5.00
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