JEE Previous Year Question
A water heater of power 2000 W is used to heat water. The specific heat capacity of water is 4200 J . The efficiency of heater is 70%. Time required to heat 2 kg of water from 10°C to 60°C is _________s. (Assume that the specific heat capacity of water remains constant over the temperature range of the water).
Topic: JEE PYQ
Answer: 300. Full step-by-step solution below.
Correct answer: 300
Solution
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