Question

A 3-pin mains plug is fitted to the cable for a 1 kW electric kettle to be used on a 250 V a.c. supply. Which of the following statements is not correct?
(a) The fuse should be fitted in the live wire
(b) A 13 A fuse is the most appropriate value to use
(c) The neutral wire is coloured black
(d) The green wire should be connected to the earth pin.

Answer 1

Answer:

(b) 13 A fuse is the most appropriate value to use

Answer 2

The correct answer is option(b) A 13 A fuse is the most appropriate value to use.

Explanation:

Fuse rating     = $\frac{ power}{voltage} \Times1.25$

Given power  =  1kW, voltage =250V

         = $\frac{1000}{250} \Times1.25$

    fuse rating= 5A

So, option (b) is incorrect.

Option (a) is correct :-The fuse is always fitted in the live wire as fuse protect the circuit from getting damaged if there is more current flows through it.

Option (c) is correct :-The neutral wire is always black in color.

Option (d) is correct :-The green wire is earthing wire so it must be connected to the earth pin.

You can get all the answers of Chapter 2 in the link below:    

https://brainly.in/question/14961525

   

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