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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A cylindrical rod of heat capacity 120J/K in a room temperature 27C is heated internally by heater of power 250W, The steady state temperature attained by the rod is 37C. Fin the following: (a) The initial rate of increse in temperature (b) The steady state rate of emission of radiant heat. If the heater is switched off, find (c) The initial rate of decrease is temperature

A cylindrical rod of heat capacity 120J/K in a room temperature 27C is heated internally by heater of power 250W, The steady state temperature attained by the rod is 37C. Fin the following: (a) The initial rate of increse in temperature (b) The steady state rate of emission of radiant heat. If the heater is switched off, find (c) The initial rate of decrease is temperature

A body cools in a cold surrounding obeying Newton's law of cooling. It is found that from t = 0 to t = t1 A cylindrical rod of heat capacity 120J/K in a room temperature 27C is heated internally by heater of power 250W from t = t1 will it loose one fourth the total heat? it loses half the total heat. In what time