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A copper kettle weighing 1000g holds 190...

A copper kettle weighing 1000g holds 1900g of water at `19^(@)C. it takes 12 minutes to raise the temperatureto `100^(@)C`. If energy is supplied is supplied at 210V, calculate the strength of current assuming that `10%` of heat is wasted. Secific heat of copper `=0.1"cal" g^(-1)C^(-1)`.

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A copper electric kettle weighing 1000 g contains 900g of water at 20^(@)C it takes 12 minutes to raise the temperature to 100^(@)C . If electric energy is supplied at 210V, calculate the strength of the current, assuming that 10% heat is wasted. Specific heat of copper is 0.1.

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