Calculate the time taken to heat 2kg of water from 50°C to 100°C in an electric kettle taking 5A, from a 210V supply. (Specific heat capacity of water = 4200\(kg^{-1}K{-1}\)
- 2.5 minutes
- 5.7 minutes
-
6.7 minutes
- 7.5 minutes
- 9.5 minutes