Electric cooker
During which time does an electric cooker with power input P = 500 W and efficiency n = 75% heat water with mass m = 2 kg and temperature t1 = 10°C to the boiling point (t2 = 100°C)?
The specific heat capacity of water is c = 4 180 J/kg/K.
The specific heat capacity of water is c = 4 180 J/kg/K.
Correct answer:
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