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General Science and Technology Quiz
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The filament element used in common electric bulb is __ ?
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A
wolfram
💡 Explanation:
Wolfram is the German name for tungsten (symbol W), the metal used in incandescent bulb filaments. Tungsten has the highest melting point of all metals (3422°C), allowing it to withstand the high temperatures needed to produce visible light without melting. Carbon and copper are not used for this purpose.