why is tungsten used in electric bulb
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Tungsten is used for making filament of an electric bulb due to the following reasons: Being an alloy it has a very high melting point. It has very high resistivity so it does not burn easily at room temperature. The lamp glows at high temperatures.
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Tungsten is used as the filament in incandescent light bulbs because it has the highest melting point of any metal (greater than 3400°celsius) and the higher the temperature,the greater the efficiency and whiter the light .
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