Metals are used in many products because of the characteristic properties that most metals share. Which properties of the metal tungsten make it useful in the thin, glowing filaments of light bulbs?
Tungsten is electrically conductive, ductile, and opaque.
Tungsten is ductile, is malleable, and has a high luster.
Tungsten is ductile, has a high melting point, and is electrically conductive.
Tungsten has a high luster, has a high melting point, and is silver in color.
The correct answer is: Tungsten is ductile, has a high melting point, and is electrically conductive.
The correct answer is: Tungsten is ductile, has a high melting point, and is electrically conductive.
Tungsten is commonly used in the thin, glowing filaments of light bulbs due to its specific properties. Firstly, tungsten is highly ductile, which means it can be stretched into thin wires without breaking. This property is essential for forming the hair-thin filaments inside light bulbs.
Moreover, tungsten has a high melting point, which allows it to withstand the extremely high temperatures generated by the electric current passing through the filament. This property is vital because light bulbs operate at very high temperatures.
Lastly, tungsten is highly electrically conductive, enabling the efficient transfer of electricity through the filament. This characteristic allows the filament to heat up and produce light when the current flows through it.
Therefore, the combination of tungsten's ductility, high melting point, and electrical conductivity makes it highly suitable for use in the thin, glowing filaments of light bulbs.