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OpenStudy (anonymous):

A clothes dryer has a power rating of 4356 W. It takes an average of 45 minutes to dry a load of clothes. If the dryer used 8820 kJ of energy during this time, how efficient is this dryer? (Show calculations)

OpenStudy (ujjwal):

calculate the power of washing machine using relation Power=energy/time and then find the efficiency in following way: efficiency=( (rated value - obtained value)/rated value ) * 100 % If you get an aswer of 25% (approx) , you got it.. else try again.

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