PhysicsElectrical energy and powerJAMB
A 2 kW electric iron is used for 5 hours. If electricity costs ₦70 per kWh, find the cost.
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Answer: D. ₦700
Energy = 2 × 5 = 10 kWh; cost = 10 × ₦70 = ₦700.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.