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Q.

Which of the following metal is used to make the filament of an electric bulb?

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a

Aluminium

b

Chromium

c

Platinum

d

Tungsten

answer is D.

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Detailed Solution

  • The filament of a bulb is made up of Tungsten because it has a high melting point and resistivity.
  • It also does not rust easily and is not very expensive.

Therefore, Tungsten is the correct response.

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