Can we use iron instead of thungsten in circuit
Answers
Answer:
Fuse wires need to be of a low melting point so as when the current level rises above a certain level it heats up the fuse wire, the wire melts and saves our appliances. On the other hand Tungsten has a high melting point of 3422°C and thats why it is used in bulbs to give out light without melting.
Answer:
You can find tungsten at work whenever the heat's on. Because no other metal can compare with tungsten when it comes to heat resistance. Tungsten has the highest melting point of all metals and is therefore also suitable for very high-temperature applications. It is also characterized by a uniquely low coefficient of thermal expansion and a very high level of dimensional stability. Tungsten is practically indestructible. For example, we use this material to manufacture high-temperature furnace components, lamp components and components for use in the fields of medical and thin-film technology.
Atomic number- 74
CAS number -7440-33-7
Atomic mass -183.84
Melting point 3,420 °C
Boiling point 5,555 °C
Atomic volume 0.0159 [nm3]
Density at 20 °C 19.25 [g/cm³]
Crystal structure body-centred cubic
Lattice constant 317 [pm]
Abundance in the Earth's crust 1.25 [g/t]