Question

why is the fuse wire necessary for electric circuit ? Name the effect on which it works

Answer 1

Dear Student

An electrical fuse is a safety device and it works on the heating effect of current.

The fuse for protecting our domestic wiring is fitted just above our main switch on the switchboard.
It is connected in series in the electric circuits.

The ususual high current may be due to short circuit, power fluctuation in the electric line etc. The fuse wire is made of conducting alloy or metals of low melting point. Thin wires of metals such as: tin, aluminium, copper and thin wires of alloys of bronze, brass, nichrome are used as fuse.

Regards