How many kilowatt hours of energy did you use if you use your 1200 watt hair dryer for 6 minutes a day for a month

Question

How many kilowatt hours of energy did you use if you use your 1200 watt hair dryer for 6 minutes a day for a month

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Thu Thảo 3 years 2021-08-07T07:57:55+00:00 1 Answers 8 views 0

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  1. thuthuy
    0
    2021-08-07T07:58:57+00:00
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    Answer:

    1Kilowatt =1000watts

    Now

    Energy =Power x time

    We need our power in Kilowatt and Our time in hours

    Given

    Power = 1200Watt

    Divide this by 1000… To get its value in Kilowatt

    Power = 1.2kilowatt

    Time=6min

    Divide by 60 to get its value in hours

    Time = 6/60hr = 0.1hrs

    Energy = 1.2kilowatt x 0.1hrs

    =0.12kilowatt hours

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