Question

A vacuum cleaner draws a current of 2 A from the mains supply.
(a) What is the appropriate value of the fuse to be fitted in its circuits?
(b) What will happen if a 13 A fuse is fitted in its circuit?

Answer 1

Answer:

(a) We can use a 2.5 or 3 amp fuse.

(b) Such a fuse will be useless as overcurrent can damage the appliance.

Explanation:

Fuse rating = Current * 1.25

Answer 2

Explanation:

• (a) The fuse should have the appropriate value of 3 A.
• This is due to the reason that the fuse’s capacity that is used by an appliance must be larger to some extent more than the normal current’s value drawn from it.
• (b) If a 13 A fuse is fixed in the vacuum cleaner’s circuit, it can permit the flow of very high current via the vacuum cleaner.
• During overloading and short-circuits, this can damage the vacuum cleaner during short-circuits and overloading.