Fuse should be high resistance?
Fuses are safety features in circuits that will melt. This happens when the circuit overheats. By the fuse melting, it will disrupt the circuit stopping all the other components from working.
The fuses should be high resistance because typically as the resistance of the fuse increases the temperature increases. This increase in temperature allows the fuse to melt more easily. Therefore, by fuses having higher resistance, they function better.