Question

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

Answer 1

Here, power = P = 1 KW = 1000 W

Voltage = V = 220 V

Current = I = ?

Now, I = P/V = 1000/220 = 4.5 A

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

The correct option is D.

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Answer 2

Explanation:

P = 1KW = 1000 W

V = 220V

P = IV

I = P/V

= 1000/220

= 4.54 A

So , the max current needed is 4.54 A . The fuse wire of rating 4.54 should be used.

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