Fuse wire is a safety device in electrical circuits. It is designed to melt and break the circuit when the current exceeds a safe level. This requires the wire to have a low melting point and suitable resistivity. An alloy of lead and tin (solder) is commonly used for fuse wires because it has a relatively low melting point that can be precisely controlled by varying the composition, making it suitable for fusing at specific current ratings.
Fuse wire used in electric instruments are made up of :
Asked in OPSC CS Prelims 2019 · Topic: Physical Properties of Materials (Electrical Conductivity and Resistivity)
More Physics questions
- The light emitting diode (LED) is made of
- Which one of the following element is used in solar cells ?
- Filament of electric bulb is made of :
- Which of the following elements is a semi conductor?
- Pure silicon at 0 K is
- The most commonly used material for making transistors is
- The filament of an electric bulb is made of
- Which of the following technique cannot be used for generating electron-hole pairs in electronic devices ?