Question

Tungsten metal is used to make a solenoid type coil in an electrical bulb. why ?​

Answer 1

Answer:

Tungsten is used to make a solenoid type coil in an electric bulb because tungsten is an alloy and it has high melting point and high resistivity due to which it cannot burn easily at a high temperature..To prolong its life the bulb is filled with nitrogen gas..

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Answer 2

Explanation:

The intensity of light emitted by the filament of a bulb depends on the temperature of the filament.It increases with the temperature.

The melting point of the material used to make a filament of a bulb is very high so that the filament can be heated to a high temperature by passing a current through it without melting it .This enables us to obtain more light.The melting point of tungsten metal is very high that is 3410°C.Hence .tungsten metal is used to make a solenoid type of coil in an electric bulb.

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