# The Cost of Electricity

Flashcards by Adam Collinge, updated more than 1 year ago
 Created by Adam Collinge over 7 years ago
27
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Pg87

## Resource summary

 Question Answer What are the units of energy, associated with the cost of electricity? Kilowatt-hours (kWh) What is the equation for the amount of energy transferred by an appliance? Energy = Power x Time J=kWxh What is a Kilowatt-hour? The amount of electrical energy used by a 1 kW appliance, left on for 1 hour Give two formulas for calculating the cost of electricity. How do you use them? 1) units= kW x hours 2) Cost= units x Price Work out formula 1, then use those numbers in formula 2

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