if typical kitchen appliance uses 450 watts of power per day about how many kilowatt hours will it use in 30 days



450 watt per day
450*130  watts in 30 days =13500 watts
 in kilowatts =13500/1000 =13.5 kilowatts in 30  days.
a large electrical device is plugged into a 240-volt outlet and
has a resistance of 160 ohms how much power does the device use
power is given by P=I2R
P=V2/R =2402/160 =360 watts

1 comment:

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