1. Gold wire (resistivity p=2.44 x 10* 2m) with a diameter of 2.0 mm is being unwound and a certain length is selected. (a) What should be the length if we want the selected wire to have a resistance of 0.10 2? (b) If I put the wire across a potential difference of 30 V, how much energy is dissipated as heat in an hour?

1. Gold wire (resistivity p=2.44 x 10* 2m) with a diameter of 2.0 mm is being unwound and a certain length is selected. (a) What should be the length if we want the selected wire to have a resistance of 0.10 2? (b) If I put the wire across a potential difference of 30 V, how much energy is dissipated as heat in an hour?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

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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