Question

explain the importance of using fuse in a household electric current

Answer 1

In case of short circuit, + and - wires (neutral and phase wires) get touched and very high amount of current start flowing into wire which causes fire in whole wiring of house and damage house hold items. To stop it immediately, we use fuse, which get burned with certain high current and disrupt the current flow.

hope you understand

Answer 2

☟☟☟Hope it helps☟☟☟
An electric fuse is a safety device used to limit the current in an electric circuit. The use of a fuse is to safeguard the electric circuit and the electric appliances connected in the electric circuit from being damaged.