If the temperature coefficient of resistivity of the


The potential difference across the filament of a light bulb is kept constant while the filament heats up to its final equilibrium temperature. The current in the filament drops to a tenth of its original value at room temperature. If the temperature coefficient of resistivity of the filament is 0.0045 (oC)-1 and the resistivity increases linearly with temperature, find the final temperature of the filament.

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Physics: If the temperature coefficient of resistivity of the
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