Why Is Tungsten Not Used As A Wire?
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Why is tungsten not used as a wire?
Hence we can say that due to the high melting point of Tungsten metal alloy, it cannot be used in fuse wires due to the requirements of fuse wires to have low melting point.
When attempting questions based on current and electricity like the ones given to us above, keep in mind the different concepts around current, the concepts around how to increase or decrease the current, what to do in case of a short circuit and what to do etc.
A fuse is basically a small piece of wire made of a material that has a high resistivity and a low melting point, so when the current exceeds a specified limit, the fuse melts and the wire overheats due to the excess current. The thickness of the wire is determined based on the predetermined maximum current in the circuit. The main function of the fuse is to melt and disconnect the circuit so that the electrical appliances connected to the switch will not be damaged by excessive current.
Tungsten is a special metal alloy that is commonly used to make light bulb filaments due to its unique properties that cause it to emit light when an electric current is passed through it. Because it is an alloy, it has a very high melting point and high resistivity, making it less likely to burn at room temperature.
Tungsten metal cannot be used in fuses, only in light bulbs, because fuses have one purpose, and that is to melt when the current exceeds the limit, but since tungsten is an alloy, it has a high melting point and resistivity, which makes it It is difficult to melt, so it does not function as a circuit breaker and can cause damage to equipment connected to the system.
Therefore, it can be said that due to the high melting point of tungsten metal alloy, it cannot be used for fuses because fuses are required to have a low melting point.
Once a fuse has melted and disconnected the system it cannot be used again. Instead, we can use other circuit breakers that can be used over and over again because they turn off the connection to the system with just a click of a switch, and to use them again, we just turn it back on again.
