nama alat :kipas angin ,lama pemakaian 10jam/hari,energi 7,2kWh/30 2.lampu pijar lama pemakaian 12jam/hari,energi 9kWh/30hari,3.Tv lama pemakaian 4jam/hari ener

kipas
W = 7,2Kwh/30
= 0,24Kwh
t = 10 jam
P = W/t
= 0,24/10
= 0,024Kw
= 24w

lampu pijar
W = 9Kwh/30
= 0,3Kwh
t = 12 jam
P = W/t
= 0,3/12
= 0,025Kw
= 25w

tv
W = 12Kwh/30
= 0,4Kw
t = 4 jam
P = W/t
= 0,4/4
= 0,1Kw
= 100w

semoga membantu:)