Question

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?​

Answer 1

QUESTION :- 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?

ANSWER :-

We know that,

A fuse wire should be able flow that amount of current which the appliance requires.

Firstly, we have to find the maximum current that the appliance requires.

Given, 

$\sf Power = 1KW = 1000W \: and \: Voltage = 220V$

$\sf \fbox{P=V×I}$

$\sf So,\fbox{I = VP}$

$\sf I = \frac{1000}{220}$

$\sf I = \frac{100}{22}$

$\sf \fbox{I = 4.545A}$

The fuse wire should able to flow atleast 4.545A.

So, the rating of fuse wire should be 5A.

$\fbox \orange{ \sf @IIMrVelvetII}$

$\fbox \green{ \sf Thank You!!!}$