Question

An electric geyser has rating 2000W, 220V marked on it. What should be the minimum rating in whole number of a fuse wire, that may be required for safe use with this geyser.?

Answer 1

to find the fuse rating total current must be calculated using the formula
P=VI
I=P/V   2000/220
I=9.09A
So the minimum fuse rating must be of 10A that may be required for safe use.

Answer 2

The minimum rating in whole number of a fuse wire is 9 A.

Explanation:

It is mentioned that, an electric geyser has rating 2000 W, 220 V marked on it. It is required to find the minimum rating in whole number of a fuse wire.

The power of an electrical appliance is given by the formula as follows :

$P=V\times I$

I is current or rating of geyser

$I=\dfrac{P}{V}\\\\I=\dfrac{2000\ W}{220\ V}\\\\I=9.09\ A$

So, the minimum rating in whole number of a fuse wire is 9 A.

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