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A heater, rated 1000W, is used to heat 1.5kg of water at 40°C to its boiling point.

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A heater, rated 1000W, is used to heat 1.5kg of water at 40°C to its boiling point. Calculate the time in which the water starts to boil Specific heat capacity of water is 4200.Jkg-10C-1.

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Let t be the time in seconds

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