Question

What is Fuse ? why is fuse used ?​

Answer 1

It is a part of an electric circuit. It is placed near the source of electricity. It has a low melting point and melts if electric current exceeds a safety level. It is used so that electric current doesn’t reach hazardous levels

Answer 2

Explanation:

Fuse:

• When an electric current flows through a conductor, heat is produced that is how heaters, geysers, toasters, ovens and other heating devices work.
• This process is called the joule effect or joule heating after the scientist who studied it.
• A fuse makes use of Joule heating.
• It has a metallic wire (called fuse wire) of low melting point and high resistance.
• The resistance is high because the amount of heat produced is proportional to the resistance and the melting point is slow so that the wire melts easily.
• Thus, weven the current exceeds the prescribed limit the fuse wire melt and breaks the circuits.
• This saves the appliances connected to the circuit.