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On kg of water, at 20^(@) C, is heated i...

On kg of water, at `20^(@) C`, is heated in an electric kettle whose heating element has a mean (temperature averaged) resistance of `20 Omega`. The rms voltage in the mains is `200 V`. Ignoring heat loss from the kettle, time taken for water to evaporate fully is close to :
[Specific heat of water `= 4200 J//kg .^(C)`, Letent heat of water `= 2260 kJ//kg`]

A

3 min

B

16 min

C

22 min

D

10 min

Text Solution

Verified by Experts

The correct Answer is:
C
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