Question

Which is the component that breaks the electric circuit in case of excess current?

• A. Fuse wire
• B. Voltmeter
• C. Earth wire
• D. Ammeter

Answer 1

The correct option is A

Fuse wire

A fuse is a short length of wire designed to break the circuit in case of excessive current. Temperature increases with current, and after a point the fuse melts thereby breaking the circuit. Fuse wire is made up of a material which has low melting point, thereby saving electrical applicances from damage.