Question

Why does a fuse have high resistance whereas low resistivity?

Answer 1

Fuse has low resistance with comparison to the load resistance of the circuit but has high resistance when compared to the wire of same length. Thus when asked weather a fuse has high resistance or low resistance, we should answer that a fuse has high resistance with low melting point.
In comparison to the appliance with which they are related, fuses must have low resistivity. This is to cause the fuse wire to melt if a current more than the safe current for the appliance starts flowing through the circuit.