46th B.P.S.C. (Pre) 2004
The wire generally used for installation of safety fuse is made of which material?
aTin
bLead
cNickel
dAn alloy of tin and lead✓ Correct
Explanation
A fuse is a small piece of wire. It is made of a tin–lead (Sn–Pb) alloy. It has a low melting point and high resistance. Due to short-circuiting, overloading, voltage surge, etc., when the current in the circuit exceeds the specified limit, the fuse melts and breaks. This prevents damage to electrical/electronic equipment and helps avoid possible accidents.
general-science