Question

Two fuse wires of the same length are rated $15A$ and $5A$. Which of the two is thicker and why?

Answer 1

Find which is the thicker wire:

1. The current rating is directly proportional to the thickness of the fuse wire.
2. So the thicker the fuse wire higher will be the current rating.
3. Here, on comparing the fuse wires with rating $15A$ and $5A$, the $15A$wire will be thicker than $5A$.