PhysicsElectrical energy and powerJAMB
A 1.5 kW heater is used for 4 hours. If electricity costs ₦50 per kWh, find the cost.
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Answer: A. ₦300
Energy = 1.5 × 4 = 6 kWh; cost = 6 × ₦50 = ₦300.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.