Question

Fuse wire is made of an alloy of :

• A. iron and tin
• B. copper and lead
• C. tin and lead
• D. copper and iron

Answer 1

The correct option is C

tin and lead

1. An electrical fuse is a safety device in the circuit that protects electrical systems by breaking the connection when a short circuit is occurring.
2. The fuse wire is made up of $Sn\left(tin\right)andPb\left(lead\right)$ alloy because of its high resistance and low melting point.
3. The tin and lead alloy is a eutectic composition consisting of $62\%tinand38\%lead$, which melts at $183°C.$

Few major functions of the fuse:-

1. Prevents device failure due to faulty circuit operation.
2. The fuse prevents short circuits.
3. Prevents overload and blackouts.
4. Prevents damage that is caused due to mismatched loads.

Hence, option C is correct. Fuse wire is made of an alloy of tin and lead.