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Q.

The filament in an electric bulb is made up of:

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a

Silver

b

Tungsten

c

Steel

d

Copper 

answer is A.

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Detailed Solution

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  • Tungsten has a high melting point and hence does not melt and break the electric circuit easily. 
    It does not rust easily and is not very expensive.

Therefore, tungsten is used as a filament in electric bulbs.

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