A waterbed heater uses 425W of power. It is on 35% of the time, off 65%...
A waterbed heater uses 425W of power. It is on 35% of the time, off 65% . What is the annual cost of electricity at a billing rate of$0.13 per kWhr?
Homework Answers
1 year=8765.81 hrs=24*365
Out of which only 35%,it is on
so on time=3068.03 hrs
Wattatge=0.425 kw
The kwH=0.425*3068.03=1303.914
Cost=1303.914*0.13=169.50 $
No. of hours in a year =8765.81
its 35% = 35/100*8765.81
= 3068.03 hr
425 W in an hour
therefore for one year it will use =3068.03 hr * 425 W
= 1303.914 KWhr
therfor total coast = $ 0.13 per KWhr * 1303.914 KWhr
= $ 169.508
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Waterbed heater
A waterbed heater uses 450 W of power. It is on 35% of the time, off 65%.What is the annual cost of electricity at a billing rate of $0.11kW/h ?
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