Question

What is the usual current rating of the fuse wire in the line to fed :

a) Lights and fans

b) Appliances of 2KW or more power


Explain with reasons.


CBSE | Class 10 | Physics

Answer 1

a ) 5 Amp 
b ) 15 Amp 

Because the appliances with 2kw or more power needs more current to work, hence we use a 15 amp fuse . 

Answer 2

Hey Govind! ☺

Nice Questions! ♥

Let's unlock the answers now…

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Your 1st answer,
The usual capacity of the current rating of fuse wire in the line to feed lights and fans is around 5A  

Your 2nd answer ,

For  appliances of 2 kW of more power, the usual capacity of the current rating of the power of 50-60 A .

For  appliances of 2 kW , the usual capacity of the current rating of the power of 15-20 A 
The reason, :-


Fuse wire is usually made of material which have the  low melting point as well as  have the low ohmic loss . The fuse wire making material are generally of low cost but have high conductivity 


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Hope my answer helped … ☺
It was a pleasure to help you govind bhai :-)) :P