What is the change in temperature of the filament

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The filament of a certain lamp has a resistance that increases linearly with temperature. When a constant voltage is switched on, the initial current decreases until the filament reaches its steady-state temperature. The temperature coefficient of resistivity of the filament is 3.9 times 10-3 K-1. The final current through the filament is one- eighth the initial current. What is the change in temperature of the filament?

Reference no: EM13556157

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