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What is the average power consumption in watts of an appliance that uses 5.00 KW.h of energy per day?

User Alexpopescu
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1 Answer

6 votes
6 votes
(A) power = 0.208 kW = 208 watts
(B) energy = 6.6 x 10^{9} joules

Step-by-step explanation:
energy consumed per day = 5 kWh
(a) find the power consumed in a day
1 day = 24 hours
power = \frac{energy}{time}
power = \frac{5}{24}
power = 0.208 kW = 208 watts

(b) find the energy consumed in a year
assuming it is not a leap year and number of days = 365 days
1 year = 365 x 24 x 60 x 60 = 31,536,000 seconds
energy = power x time
energy = 208 x 31,536,000
energy = 6.6 x 10^{9} joules
User BLSully
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