An electric clothes dryer draws 23 A at 220 V.If the clothes put into the dryer have a mass of 7 kg when wet and 4 kg dry,how long does it take to dry the clothes? (Assume all heat energy goes into vaporizing water,Lv = 2.26 × 106 J/kg) .
A) 52 min
B) 22 min
C) 30 min
D) 6 min
E) 4 min
Correct Answer:
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