what is tungsten?why it is used in electric bulb?
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Pure tungsten has some amazing properties including the highest melting point (3695 K), lowest vapor pressure, and greatest tensile strength out of all the metals.Because of these properties it is the most commonly used material for light bulb filaments.
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mercifulman10:
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Derive the relation R = R1 + R2 + R3 when three resistors R1, R2 and R3 are connected in series. plzz answer this
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tungsten is a metal. it is used as filament
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