Asked by Dee

A tungsten wire has a radius of 0.077 mm and is heated from 20.0 to 1205 °C. The temperature coefficient of resistivity is α = 4.5 10-3 (C°)−1. When 110 V is applied across the ends of the hot wire, a current of 1.3 A is produced. How long is the wire? Neglect any effects due to thermal expansion of the wire.

11 years ago

Answered by Anonymous

14380 m

11 years ago

Answered by JPeabs

4.44 m

9 years ago

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Asked by Dee

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