A copper calorimeter of mass `0.1kg` is filled with `52g` of kerosene. A resistance wire of resistance 2 ohms is immersed in it and it is observed that there is a `5^(@)C` rise in temperature in 6 minutes when 1 amperes of current is passed through it. Calclate the valule of `J`. Sp. heat capacity of copper `=100 cal kg^(-1)K^(-1)` and sp. heat capacity of kerosene `=500 cal kg^(-1) K^(-1)`.
