gsanr820 gsanr820

21-02-2018
Physics

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A microwave oven with a power rating of 1,790 watts is used for 49 minutes. How much electrical energy is used by the microwave

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aimanadlinp4fyje aimanadlinp4fyje

21-02-2018

1790 = electrical energy / 2940 seconds
Electrical energy = 5262.6kJ

or

1.79kW X 49/60
= 1.46kWh

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