A heating coil of resistance 4ohm and operates at 220V AC.If the coil is immersed in an insulated container holding 20 kg of water for 5 minutes,what will be the increase of temperature of water? Assume that 100% heat is observed by water.

A 43.21°C

B 49.25°C

C 46.25°C

D 45.50°C

Solution

Correct Answer: Option A

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