What happens if a fuse wire has high melting point?
Table of Contents
- 1 What happens if a fuse wire has high melting point?
- 2 Why do we use fuses in household circuits and what happens if a high melting point conductor is used as a fuse I house hold connections?
- 3 Why does a fuse wire has low melting point?
- 4 Can I use wire instead of fuse?
- 5 Why are conductors with a low melting point used as fuses?
What happens if a fuse wire has high melting point?
If a very high current (which can damage other components in the circuit) flows through the fuse wire, a lot of heat is generated and this causes the fuse wire to melt and break the circuit.
What happens if a high melting conductor is used as a fuse in house hold connection?
Explanation: Now if use a fuse wire of high melting point the during short circuit it wouldn’t melt down easly and would cause the damage to the appliances and may result in fire.
What happens if we use made up of same wire which is used to make the electric circuit?
(1) If we use a fuse made up of same wire which is used to make the electric circuit having high melting point, it does not melt when high voltage occurs. (2) So, it cannot protect electrical appliances from getting damaged due to overloading.
Why do we use fuses in household circuits and what happens if a high melting point conductor is used as a fuse I house hold connections?
We use fuses to protect the electrical circuit from overloading. If the current exceeds the safe limit, the fuse melts and breaks, the circuit then becomes open and prevents the flow of current into the household circuit thus preventing the electrical appliances in the circuit from being damaged.
Why does a fuse wire have high resistivity?
A fuse wire has high resistance and low melting point because when the high current passing through the circuits a fuse will resist the high current and protected the other electric appliances being damaged. A fuse wire melts easily if a high current passes through the circuit.
Why the melting point of a fuse is kept low?
than heat will be produced according to joule’s heating effect.. since,the fuse should have low melting point so that it melts when excess of current flows and cuts off the circuit and the appliances are saved from getting damaged..
Why does a fuse wire has low melting point?
Fuse wires have a low melting point so that if a huge amount of current is passed through it to any appliance than that wire would melt and stop the appliance from getting damaged by not letting the current pass any further.
What will happen if the wire between the nails is replaced by a conducting wire?
Answer: If in a circuit, an iron nail is replaced by a wooden stick between the two end of wire the the flow of conductor is interrupted. Explanation: Iron nail is a very good conductor of electricity hence there will be a good flow of electricity in its presence.
When heat is generated Why does the 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.
Can I use wire instead of fuse?
Yes, physically you can take a wire which matches your circuit current ratings and put it in place of the fuse and it will work, until, the circuit becomes overcurrent and then you will have problems of melting wires and big flashes.
What happens if we use a fuse made up of?
When a damaged live wire makes contact with a metal case that is connected to ground, a short circuit will form and the fuse will melt….Fuse (electrical)
| Working principle | Melting of internal conductor due to heat generated by excessive current flow |
| Electronic symbol | |
|---|---|
| Electronic symbols for a fuse |
What causes a fuse wire to melt?
Under normal conditions, the fuse wire is a part of the circuitry, contributing to a complete loop for charges to flow through it. However, when an excessive amount of current flows through the fuse wire, the heating effect of current causes the fuse wire to melt. This is because the fuse wire is chosen such that it has a low melting point.
Why are conductors with a low melting point used as fuses?
It will isolate the circuit from the source when the current flow exceeds its limit. As the Fuse is not just an electrical contact, it should connect the circuit; at the same time, it can melt when the current exceeds the limit. That is why conductors with a low melting point are used as a fuse.
Should a fuse wire have a high or low resistance?
A fuse wire should not have high resistance or low resistance. It should have enough resistance to carry its rated current without unwanted disconnection and melt instantly for a small excess of current. That is the fuse thickness increases with the current rating.
Why do fuse wires have thick cross section?
So, If the fuse wires are thick, the larger cross section decreases the resistance across the fuse wire. So, even a high current flows through the fuse, it doesn’t blow out.