the final temperature of water.
7. A coil of resistance 1000 is immersed in a vessel containing 500 grams of water at 20"
C and it is connected to a 220 V supply. Calculate the time required to boil away the
water. Assume latent heat of steam is 530 Kcal/kg and efficiency of the system is 90%.
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Explanation:
4.2 J = 1 cal
efficiency = output power/ input power
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