Why is fuse wire is made of low melting point material?
Table of Contents
- 1 Why is fuse wire is made of low melting point material?
- 2 Is fuse wire low melting point?
- 3 Why alloy is used in fuse wire?
- 4 What are the reasons for melting of a fuse wire?
- 5 What is the alloy for a fuse wire?
- 6 What is the melting point of the fuse element must be since fuse elements are made of zinc or an alloy of tin and lead?
Why is fuse wire is made of low melting point material?
(1) A fuse is used to protect a circuit and the appliances connected in the circuit by stopping the flow of an excessive electric current. When the current exceeds the specified value, the fuse must melt to break the circuit. For this, the material used for a fuse has low melting point.
Why do they use alloys of low melting point in a fuse?
An electrical fuse is a safety device in the circuit that protects electrical systems by breaking the connection when a short circuit is occurring. The fuse wire is made up of Sn (tin) and Pb (lead) alloy because of its high resistance and low melting.
Is fuse wire low melting point?
A fuse contains a strip of metal or a metal wire having a small cross section area. It was discussed that fuse is used for protection of a circuit from overcurrent. Hence, fuse wire is a wire of high resistance and low melting point. Hence, option B is correct.
Why is a fuse wire made up of an alloy and not of pure metal?
Answer Expert Verified Fuse wires are made of Tin-lead alloy instead of copper due to various reasons. This wire is consist of low melting point as well as the have the high resistance. The alloy result in good functioning of the fuse. Also the low melting point occur due to the lead.
Why alloy is used in fuse wire?
The fuse wire in a fuse gets melted easily as the value current exceeds the permissible value thus it must be made of a material of high resistance and low melting point. Therefore the fuse wire is made of an alloy of Tin and Lead due to their high resistance and low melting point.
Why does a fuse wire melt?
Answer: Fuse wire melts when it overloads because overloading causes wire to heat up and as fuse is made up of low melting point material it melts easily to prevent damage… thus a fuse breaks when we overload a socket ..
What are the reasons for melting of a fuse wire?
A fuse is used in a circuit to avoid overloading or short circuiting. When a current higher than the rating of the fuse flows through it, the fuse wire gets heated and melts. This breaks the circuit and protects the appliances from getting damaged.
Why is fuse wire made up of alloy?
What is the alloy for a fuse wire?
Solution: Fuse wire is made of alloy of lead and tin having low melting point of 200°C.
What is the melting point of fuse wire?
Fuse wire is made of alloy of lead and tin having low melting point of 200°C.
What is the melting point of the fuse element must be since fuse elements are made of zinc or an alloy of tin and lead?
Fuse Wire Materials
| Metal | Melting Point in Celsius | Specific Resistance |
|---|---|---|
| Silver | 980 | 16 |
| Tin | 240 | 112 |
| Zinc | 419 | 60 |
| Lead | 328 | 210 |
What is the resistance of a fuse wire?
They have low resistance compared to the load, but they have high resistance compared to a similar length (one inch or so) of the wiring used. Here’s a list of fuses and their DC resistances: A one amp fuse has about 0.10 ohms. It has to have a higher resistance to heat up and melt if the current is high.