Question

The thinner the fuse wire, the greater its capacity.

• A. True
• B. False

Answer 1

The correct option is B False

1. The resistance of a conductor is proportional to its length and inversely proportional to the cross-sectional area.
2. Therefore, if the fuse wires are thick, the cross-sectional area increases which decrease the resistance across the fuse wire.
3. Thus, the rating of the fuse wire is large in the case of thick wire as a large amount of current is required to cause the heating effect.

Hence, the given statement is false.