Question

characteristics of tungsten and why it is used for making filament of bulb​

Answer 1

Answer:

Here you go, your welcome!

Explanation:

Question:

Characteristics of tungsten and why it is used for making filament of bulb?

Answer:

Characteristics of tungsten:

• Very high in density.
• high in density.Very high in tensile strength.
• high in density.Very high in tensile strength.Heat resistant.
• Radiation shielding.
• Radiation shielding.Least corrosion.

Why tungsten is used for making filament of bulb?

Tungsten is used for making filament of an electric bulb due to the following reasons: Being an alloy it has a very high melting point. It has very high resistivity so it does not burn easily at room temperature. The lamp glows at high temperatures.

Answer 2

Answer:

Explanation:

Features of tungsten:

1⇒High melting point. With the highest melting point among metals, tungsten has low thermal expansion coefficient and extremely high shape stability even under a super high temperature environment.

2⇒Large electric resistance.

3⇒High hardness.

Used for making bulb filament:

Tungsten is used in an electrical bulb because it has a high melting point and does not oxidize. Thus, the filament of tungsten does not melt even though a large amount of heat is generated due to the passage of the current through the filament (through the heating effect of the current).