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26/07/2021 2:05 pm
Topic starter
An electric kettle connected to the 230 V mains supply draws a current of 10 A. Calculate :
(a) the power of the kettle.
(b) the energy transferred in 1 minute.
1 Answer
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26/07/2021 2:07 pm
Given, V = 230V, I = 10 amp
(a) P = VI
P = 230 x 10
P = 230 watt = 2300 J/s
(b) Energy consumed in minute = P x t
= 2300 J/s x 60s
= 138000 J