Answered: )If a certain silver wire has a…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter21: Circuits And Dc Instruments

Section: Chapter Questions

Problem 24PE: A child’s electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of...

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a)If a certain silver wire has a resistance of 8.40 Ω at 16.0°C, what resistance will it have at 46.0°C?
________Ω

b)Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.17 km long. The density of gold is 19.3 ✕ 10³ kg/m³, and its resistivity is 2.44 ✕ 10⁻⁸ Ω · m. What is the resistance of such a wire at 20.0°C?
________MΩ

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