Q. Fuse wire is made of
A) 63% Lead and 37% Tin
B) 63% Tin and 37% Lead
C) 63% Tin and 37% Aluminium
D) 63% Lead and 37% Aluminium
✔ Correct Answer: 63% Tin and 37% Lead
Exam Insight
Fuse wires are typically made of metals with low melting points, such as copper, aluminum, or an alloy of lead and tin. These metals are chosen for their ability to melt and break the circuit when the current exceeds safe levels, preventing overheating or potential damage to electrical components. The choice of material is critical for ensuring the fuse wire performs efficiently in protecting electrical systems.