Which metal is used to coat the filament in light bulbs?
AAluminum
BCopper
CGold
DTungsten
Explanation
• Tungsten has the highest melting point of any element.
• This property makes it ideal for incandescent bulb filaments, which must withstand very high temperatures.
• It is also used in high-strength alloys.
Exam Relevance
- Topic: Competitive Exams
- Subtopic: FPSC/PPSC Past Papers

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