Question

Complete the following sentences :

(a) A fuse is a short piece of wire of high ___ and of the material of low ___.

(b) A fuse wire is made of an alloy of ___ and ___ if the current in a circuit exceeds the current rating of the fuse wire, it ___.

(c) A fuse is connected in ___ with the ___ wire.

(d) Higher the current rating, ___ is the fuse wire.

Answer 1

(a) A fuse is a short piece of wire of material of high resistivity and low melting point.

(b) A fuse wire is made of an alloy of lead and tin. If the current in a circuit rises too high, the fuse wire, it melts.

(c) A fuse is connected in series with the live wire.

(d) Higher the current rating, thicker is the fuse wire.