Solution:
(i) As the wire thickness increases, the current increases, allowing more electrons to travel through a larger area. As a result, 20 A wire will be thicker than 5 A wire.
(ii) The length of both fuse wires may be the same.
Solution:
(i) As the wire thickness increases, the current increases, allowing more electrons to travel through a larger area. As a result, 20 A wire will be thicker than 5 A wire.
(ii) The length of both fuse wires may be the same.