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 5 of 15.
Lalji pandey said:
1 decade ago
Nitrogen is cheaper and less reactive due to half filled p orbital but inert gases are costly used in costly cfl etc option of nitrogen is present also.
Riya said:
1 decade ago
If we use other gases what will happen?
Sathvika said:
1 decade ago
Because nitrogen glows and emit light.
Sumit said:
1 decade ago
But we use neon gas.
Jazlyn said:
1 decade ago
It is argon and I am sure about it because it is written in my book.
Rahul prasad said:
1 decade ago
It is nitrogen because it can easily absorb heat and can reject easily.
Mohd aquib ansari said:
1 decade ago
Because the filament of the bulb is made of nichrome and nitrogen does not react with nichrome.
Hamza said:
1 decade ago
It is an inert gas which do not react with hot filament of the bulb made up of tungsten & temperature is over 1500c.
Sandeep said:
1 decade ago
Incandescent light bulbs heat a tungsten filament to extremely high temperatures. At such temperatures ordinary air would rapidly oxidize the filament and the bulb would burn out in seconds. Instead the bulbs are filled with argon, which is inert and will not react with the tungsten under any conditions.
Ashutosh said:
1 decade ago
Actually argon and helium use in electrical bulb in tube light on high pressure mercury gas.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers