Multiple choice

Fuse wire is made up of

  1. 63% tin and 37% lead

  2. 63% lead and 37% tin

  3. 63% tin and 37% aluminium

  4. 63% lead and 37% aluminium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fuse wire is traditionally made of a tin-lead alloy (63% tin, 37% lead) because this combination has a low melting point. When excessive current flows, the wire heats and melts, breaking the circuit and preventing damage to appliances or wiring.

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