Question

define electric fuse. explIn its principal with working.​

Answer 1

Answer:

An electric fuse is based on the principle of heating effect of electric current. It is made up of thin metallic wire of non-combustible material.  When an excessive current flows in the circuit, it generates heat in the circuit which leads to melt the fuse due to its low melting point, and it also opens the circuit.

Explanation:

Answer 2

Answer:

An electric fuse is an electric device which interrupts the flow of current in an electric circuit. It is installed in a circuit to stop the flow of excessive current. A fuse is usually a short piece of wire. ... Normally an alloy of tin and lead is used as the fuse wire, as it has high resistivity and low melting point.