Directions: Read and analyse the following problems. Show the complete solution of each problem in your answer sheet. 1. What is the resistance of a 30 m silver wire with a diameter of 2 mm? 2. A carbon wire with a 3 mm diameter has a resistance of 100 ohms. How long is the wire? 3. A 200 m long aluminum wire has the same resistance and cross-sectional area as a carbon wire. What is the length of the carbon wire? 4. A wire made of an unknown substance has a resistance of 125 m2. The wire has a length of 1.8 m and a cross- sectional area of 2.35x10-5 m2. What is the resistivity of the substance from which the wire is made?

Directions: Read and analyse the following problems. Show the complete solution of each problem in your answer sheet. 1. What is the resistance of a 30 m silver wire with a diameter of 2 mm? 2. A carbon wire with a 3 mm diameter has a resistance of 100 ohms. How long is the wire? 3. A 200 m long aluminum wire has the same resistance and cross-sectional area as a carbon wire. What is the length of the carbon wire? 4. A wire made of an unknown substance has a resistance of 125 m2. The wire has a length of 1.8 m and a cross- sectional area of 2.35x10-5 m2. What is the resistivity of the substance from which the wire is made?

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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