The filament of an electric bulb is made of______________?
Correct answer: C. tungsten
- A. carbon
- B. aluminium
- C. tungsten
- D. nickel
Explanation
Tungsten is used for incandescent bulb filaments because it has a very high melting point and can withstand intense heating while emitting light. Carbon, aluminium, and nickel are not the standard filament material in ordinary bulbs.
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