Question

Mention suitable properties of tungsten as Lamp Filament.​

Answer 1

Answer:

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:

Tungsten is an appealing lamp filament material, as it has a very high melting temperature (~3680 K) and a low vapor pressure at elevated temperatures. Tungsten is also naturally brittle and, at first, this prevented the production of tungsten wire.

Explanation:

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