Another kettle has a power rating of 3 kW of power and transfers 2 kW of that into heat energy to boil water. How efficient is the kettle?

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Grades 11 and 12 - Physics - Senior High School - Electricity: The Usefulness of Electrical Appliances — practice the complete quiz, review flashcards, or try a random question.


Another kettle has a power rating of 3 kW of power and transfers 2 kW of that into heat energy to boil water. How efficient is the kettle?





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