why is a long and thin tungsten filament used in a bulb ?
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Answered by
25
it does not melt easily .it has a high melting and boiling points. so it is used in bulbs
kotaditi:
thank u sona
Answered by
26
Light bulbs glows when electricity is passed through the filament. High melting point tungsten has melting point of 3422C so it doesn't melt when current is passed it doesn't melt.Tungsten apart from having high melting point also has high tensile strength.
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