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CBSE Class 10 Answered

why the filament made of tungsten glows and the wire made of copper or aluminium does not?
Asked by nishantcoolteen | 20 Oct, 2009, 06:08: PM
answered-by-expert Expert Answer

Tungsten is an alloy as such it has a high resistivity and high melting point and it glows brightly whereas cu / Al. are pure metals and they have low resistivity and low melting point as compared to alloys and hence do not glow brightly.

Answered by | 21 Oct, 2009, 11:57: PM

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