1.

An electric oven of 2 kW power rating is operated in a domestic electric circuit [220V] that has a current rating of 5 A. What result do you expect ? Explain.

Answer»

SOLUTION : Given :
Power of the oven = 2 kW = 2000W, Voltage = 220 V.
Using P = VI , L = `(P)/(V) = (2000)/(220) = 9 . 09 A`
This exceeds the specified current rating of the oven which is 5A . Hence electric fuse meltsand breaks the circuit.


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