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3 June, 23:43

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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  1. 3 June, 23:45
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    1790 = electrical energy / 2940 seconds

    Electrical energy = 5262.6kJ

    or

    1.79kW X 49/60

    = 1.46kWh
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