b) The resistance R of a conductor depends on its shape and physical dimensions and aproperty of the material called the resistivity p.i) What does the resistivity of a material depend upon?ii) Assuming that the resistivity of copper is a quarter of that of aluminium and that thedensity of copper is three times that of aluminimium, find the ratio of the masses ofcopper and aluminium wires with the same length and the same resistance but withdifferent cross-sectional areas.

Part (i)The resistivity of a material depends on its material and the working temperature.Part…

Answered: b) The resistance R of a conductor…

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)...

See similar textbooks

Similar questions

Two wires are identical, except that one is aluminum and one is copper. The aluminum wire has a resistance of 0.2072. What is the resistance of the copper wire? Take the resistivity of copper to be 1.72 x 10-8 Q-m, and that of aluminum to be 2.82 x 10-8 Q.m. Number i Units
5) Please need the correct to this problem with full explanation and methods how you get the answer, please.
The resistivity of copper is 1.72E-8 Ω·m. We would like to use a copper wire to connect two devices that are 6.65 m apart and require the wire resistance to be no higher than 7.21E-3 Ω. What is the minimum cross section area of the copper wire that we should use (in m2)?
If the resistivity of copper is less than that of gold at room temperature, which of the following statements must be true? a) Gold has a higher resistance than copper. b) The sample of gold is thinner than a sample of copper. c) There is more current flowing in the gold than in the copper. d) Electrons in gold are more likely to be scattered than electrons in copper at room temperature when they are accelerated by the same electric field.
2) Resistivity is a property of a particular material and can be used to calculate the resistance of a sample. a) Provide an equation for calculating the resistivity of a material. b) Calculate the resistance of 50m roll of copper wire which has a cross sectional area of 5mm^2 if the resistivity of copper is 1.72 x 10^-8 ohm metres.
Determine the length (in mm) of a gold conductor that has a resistance of 0.019 Ω and a cross-sectional area of 2.1 x 10-9 m2. The resistivity of gold is 2.2 x 10-8 Ω-m [round your final answer to one decimal place]. An aluminum conductor with the same length and area as in Question above would have a higher resistance than the gold conductor. The resistivity of aluminum is 2.6 x 10-8 Ω-m. True or false
The radius r of a wire grows linearly with its length I according to r(2) = a+x, where z is the distance from the thinner end of the wire with radius a. Express the resistance as a function of the resistivity of the material p, the length of the wire I and the radii a and b. View Available Hint(s ?
Pure copper has a resistivity of 1.68 × 10−8 Ωm. Some accurate cubes of copper are prepared,and electrical measurements are made, for which current is passed across a pair of oppositefaces.a) Comparing a 2.5 cm cube and a 5 cm cube, which will have the higher conductance? Explain your answer.b) Given eight 1 cm cubes, how can they be stacked to get the highest and the lowest resistance between opposite faces of the stack? Calculate the resistance of each stack.
Aluminum and copper wires of equal length are found to have the same resistance. What is the ratio of their radii? Note: You need to use the concept of resistivity and find the resistivity of these two materials to solve this problem. You can find a table of resistivity in your textbook or use the internet.
To what value would you have to raise the temperature of a copper wire (originally at 20 °C) to increase its resistance by 18 % ? Assume the temperature coefficient of resistivity of copper is 0.0039 (°C) 1. Express your answer using two significant figures. ? Tinal = °C Submit Request Answer
Question A2 Pure copper has a resistivity of 1.68 x 10-8 Nm. Some accurate cubes of copper are prepared, and electrical measurements are made, for which current is passed across a pair of opposite faces. a) Comparing a 2.5 cm cube and a 5 cm cube, which will have the higher conductance? Ex- plain your answer. b) Given eight 1 cm cubes, how can they be stacked to get the highest and the lowest resis- tance between opposite faces of the stack? Calculate the resistance of each stack.
C-Copper wire of length (4) connected in parallel with aluminum wire of length(2) and (10mm) diameter, if the current in each wire is the same. Find the diameter of the copper wire if the resistivity of copper is (0.0159 u-m) & for aluminum is (0.0254 u-m).

SEE MORE QUESTIONS

Recommended textbooks for you

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

Physics for Scientists and Engineers

Physics

ISBN:

9781337553278

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Lecture- Tutorials for Introductory Astronomy

Physics

ISBN:

9780321820464

Author:

Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden

Publisher:

Addison-Wesley

College Physics: A Strategic Approach (4th Editio…

Physics

ISBN:

9780134609034

Author:

Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher:

PEARSON

SEE MORE TEXTBOOKS