an electric kettle takes 4 A current at 220 v how much time will it take to boil 1 kg of water from temperature 14 degree celsius if the temperature of boiling water is 100 degree celsius
Answers
Answered by
0
P = IV = 880 Watts
P = work / time = 880 joules per sec
Q = m.c.del T
c is 4200 J per kg per K for water
Q = 1*4200* 86 = 361200
Time = Q / W = 361200 / 880 = 410.45 seconds/6.84 minutes
P = work / time = 880 joules per sec
Q = m.c.del T
c is 4200 J per kg per K for water
Q = 1*4200* 86 = 361200
Time = Q / W = 361200 / 880 = 410.45 seconds/6.84 minutes
Similar questions