Q16 of 35 Page 90

An electric kettle consumes 1 kW of electric power when operated at 220 V. A fuse wire of what rating must be used for it?

Power = 1 kW


In Watt, P= 1000 W


Current is given by I = P/V


I= 1000/220


I = 4.5 A


So, A fuse wire of rating slightly greater than 4.5A must be used i.e. 5A.

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