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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > An electric heater supplies 1.8 kW of power in the form of heat to a tank of water. How long will it take to heat the 200 kg of water in the tank from 10 to 70C ? Assume heat losses to the surroundings to be negligible

An electric heater supplies 1.8 kW of power in the form of heat to a tank of water. How long will it take to heat the 200 kg of water in the tank from 10 to 70C ? Assume heat losses to the surroundings to be negligible

What is the change in potential energy (in calories) of a 10kg mass after 41.8m fall?