General Knowledge - General Science - Discussion
Discussion Forum : General Science - Elements and Metals (Q.No. 7)
7.
The gas usually filled in the electric bulb is
Discussion:
146 comments Page 6 of 15.
Sourav said:
1 decade ago
Argon and helium are generally used in bulbs. Edison used nitrogen due to its inactivity.
Govind said:
1 decade ago
Is helium used in bulbs?
Yatin Rathore said:
1 decade ago
Yes helium can also used in electric bulb, because it is inert gas. Is nitrogen a inert gas?
Avatar said:
1 decade ago
Nitrogen why?
Swaraj said:
1 decade ago
Ya we used nitrogen but why, we also used argon?
AMIT said:
1 decade ago
Argon gas is also use in bulb and tube light.
Romy Khan said:
1 decade ago
It is Argon. Because it has most inert property. But according to options nitrogen is correct. :-).
Nakul sharma said:
1 decade ago
The bulb is filled with an inert gas such as argon (93%) and nitrogen (7%) to reduce evaporation of the filament and prevent its oxidation at a pressure of about 70 kPa (0.7 atm).
Early lamps, and some small modern lamps used only a vacuum to protect the filament from oxygen.
Early lamps, and some small modern lamps used only a vacuum to protect the filament from oxygen.
Parveen Nehra said:
1 decade ago
Why insert nitrogen gas in bulb. But 93% argon gas?
Chandrasekhar.reddy said:
1 decade ago
N2 prevents combustion of tungsten, that's why it is used.
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