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A tungsten wire has a radius of 0.096 mm and is heated from 20.0 to 1331 °C. The temperature coefficient of resistivity is a = 4.5 x 10 3 (CO)-1. When 150 V is applied across the ends of the hot wire, a current of 2.3 A is produced. How long is the wire? Neglect any effects due to thermal expansion of the wire. Number i Units

A tungsten wire has a radius of 0.096 mm and is heated from 20.0 to 1331 °C. The temperature coefficient of resistivity is a = 4.5 x 10 3 (CO)-1. When 150 V is applied across the ends of the hot wire, a current of 2.3 A is produced. How long is the wire? Neglect any effects due to thermal expansion of the wire. Number i Units

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A tungsten wire has a radius of 0.096 mm and is heated from 20.0 to 1331 °C. The temperature coefficient of resistivity is a = 4.5 x 10 3 (CO)-1. When 150 V is applied across the ends of the hot wire, a current of 2.3 A is produced. How long is the wire? Neglect any effects due to thermal expansion of the wire. Number i Units
Transcribed Image Text:A tungsten wire has a radius of 0.096 mm and is heated from 20.0 to 1331 °C. The temperature coefficient of resistivity is a = 4.5 x 10 3 (CO)-1. When 150 V is applied across the ends of the hot wire, a current of 2.3 A is produced. How long is the wire? Neglect any effects due to thermal expansion of the wire. Number i Units
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