when electric current is passed through a filament it glows with bright light due to heating but it doesn't happen in other wires why
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Answered by
3
The metal used in bulb filament is of high resistance (tungsten). Due to high resistance more current is consumed as heat and light energy.
In wires, low resistance metals are used such as copper, aluminum, etc which prevents the electrical energy to convert into heat and light. Though wired may get heated but not to the extent that it may glow...
Bulb is used mainly for light and hence purposely high resistance metal is used..
Any doubts???? Leave in comments section. And Follow...
In wires, low resistance metals are used such as copper, aluminum, etc which prevents the electrical energy to convert into heat and light. Though wired may get heated but not to the extent that it may glow...
Bulb is used mainly for light and hence purposely high resistance metal is used..
Any doubts???? Leave in comments section. And Follow...
Answered by
3
the resistance in other wires such as copper is very less compared to Tungsten. Due to free flow of electrons the wire doesn't Glow. Where as in Tungsten due to high resistance heat is generated due to which the wile or filament glows.
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