The characteristics of a fuse wire are:
(a) High resistance, low melting point
(b) Low resistance, high melting point
(c) Low resistance, low melting point
(d) High resistance, high melting point
WBBSE
Class X
Physical Science
Current Electricity
01 Mark
2025
(a) High resistance, low melting point
Explanation
A fuse wire is a safety device used to protect electrical circuits from damage caused by overloading or short circuits.
It should have:
- High resistance, so that it heats up quickly when excessive current flows.
- Low melting point, so that it melts easily and breaks the circuit before the appliances or wiring are damaged.
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