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Sahay Sir > Question Answers > Arihant Physics by D.C Pandey > Volume 2 > Chapter 3 - Current Electricity > What must be the efficiency of an electric kettle marked 500W, 230V, if the was found to bring 1 kg of water at 15^oC to boiling point in 15 minutes? (given specific heat capacity of water =4200 J/kg^oC)

What must be the efficiency of an electric kettle marked 500W, 230V, if the was found to bring 1 kg of water at 15^oC to boiling point in 15 minutes? (given specific heat capacity of water =4200 J/kg^oC)

230V if the was found to bring 1 kg of water at 15^oC to boiling point in 15 minutes? (given specific heat capacity of water =4200 J/kg^oC) What must be the efficiency of an electric kettle marked 500W