A capacitor of capacitance C is fully ch...

A capacitor of capacitance C is fully charged by a 200 V battery. It is then discharged through a small coil of resistnace wire embedded in a thermally insulated block of specific heat `2.5xx10^(2)Jkg^(-1)K^(-1)` and of mass 0.1 kg. if the temperature of the block rises by 0.4 K, what is the value of C?

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