Calculate the power-rating of a heating element which melted in $20g$ of ice at $0^{\circ }C$. and raised the temperature of the resulting water to ${60}^{\circ }C$ in 2 minutes Specific latent heat of fusion of ice $=340V/g$ Specific heat capacity of water $=4.2J/9^{\circ }C$

A. $5.92kw$
B. $98.6w$  
C. $107w$
D. $42w$

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Correct Answer: B