Question

What gas is filled in a ELECTRIC BULB WHY

Answer 1

Answer:

Filling a bulb with an inert gas such as argon or nitrogen slows down the evaporation of the tungsten filament compared to operating it in a vacuum.

Explanation:

Answer 2

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$\huge{\red{\mathfrak{ANSWER:-}}}$

Electric bulbs are filled with inert gases like argon or nitrogen. The bulb can't be filled with air as the filament in the bulb (tungsten) will react with oxygen and the filament will burn. Therefore the bulbs are filled with the inert gases as it prevents evaporation of filament and maintains the pressure inside the bulb.